Sr₂SiO₄∶Eu²⁺,Dy³⁺的光存储特性 增强出版

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"contribgroup": { "author": [ { "name": [ { "lang": "zh", "surname": "周", "givenname": "琼", "namestyle": "eastern", "prefix": "" }, { "lang": "en", "surname": "ZHOU", "givenname": "Qiong", "namestyle": "eastern", "prefix": "" } ], "stringName": [], "aff": [ { "rid": "aff1", "text": "1" } ], "role": [ "first-author" ], "bio": [ { "lang": "zh", "text": [ "周琼(1995-)，男，安徽枞阳人，硕士研究生，2019年于安徽工程大学机电学院获得学士学位，主要从事稀土发光材料的研究。E-mail: 1907871427@qq.com" ], "graphic": [ { "print": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123519&type=", "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123521&type=", "big": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123523&type=" } ], "data": [ [ { "name": "text", "data": "周琼" }, { "name": "text", "data": "(1995-)，男，安徽枞阳人，硕士研究生，2019年于安徽工程大学机电学院获得学士学位，主要从事稀土发光材料的研究。E-mail: " }, { "name": "text", "data": "1907871427@qq.com" } ] ] } ], "email": "1907871427@qq.com", "deceased": false }, { "name": [ { "lang": "zh", "surname": "孟", "givenname": "宪国", "namestyle": "eastern", "prefix": "" }, { "lang": "en", "surname": "MENG", "givenname": "Xian-guo", "namestyle": "eastern", "prefix": "" } ], "stringName": [], "aff": [ { "rid": "aff1", "text": "1" }, { "rid": "aff2", "text": "2" } ], "role": [], "deceased": false }, { "name": [ { "lang": "zh", "surname": "许", "givenname": "英朝", "namestyle": "eastern", "prefix": "" }, { "lang": "en", "surname": "XU", "givenname": "Ying-chao", "namestyle": "eastern", "prefix": "" } ], "stringName": [], "aff": [ { "rid": "aff1", "text": "1" }, { "rid": "aff2", "text": "2" } ], "role": [ "corresp" ], "corresp": [ { "rid": "cor1", "lang": "en", "text": "E-mail: ycxu@xmut.edu.cn", "data": [ { "name": "text", "data": "E-mail: ycxu@xmut.edu.cn" } ] } ], "bio": [ { "lang": "zh", "text": [ "许英朝(1980-)，男，山东莘县人，博士，教授，2009年于中国科学院长春光学精密机械与物理研究所获得博士学位，主要从事光电材料与器件、半导体照明技术等方面的研究。E-mail: ycxu@xmut.edu.cn" ], "graphic": [ { "print": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123524&type=", "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123527&type=", "big": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123530&type=" } ], "data": [ [ { "name": "text", "data": "许英朝" }, { "name": "text", "data": "(1980-)，男，山东莘县人，博士，教授，2009年于中国科学院长春光学精密机械与物理研究所获得博士学位，主要从事光电材料与器件、半导体照明技术等方面的研究。E-mail: " }, { "name": "text", "data": "ycxu@xmut.edu.cn" } ] ] } ], "email": "ycxu@xmut.edu.cn", "deceased": false }, { "name": [ { "lang": "zh", "surname": "刘", "givenname": "春辉", "namestyle": "eastern", "prefix": "" }, { "lang": "en", "surname": "LIU", "givenname": "Chun-hui", "namestyle": "eastern", "prefix": "" } ], "stringName": [], "aff": [ { "rid": "aff1", "text": "1" } ], "role": [], "deceased": false }, { "name": [ { "lang": "zh", "surname": "吴", "givenname": "盼盼", "namestyle": "eastern", "prefix": "" }, { "lang": "en", "surname": "WU", "givenname": "Pan-pan", "namestyle": "eastern", "prefix": "" } ], "stringName": [], "aff": [ { "rid": "aff1", "text": "1" } ], "role": [], "deceased": false }, { "name": [ { "lang": "zh", "surname": "王", "givenname": "明明", "namestyle": "eastern", "prefix": "" }, { "lang": "en", "surname": "WANG", "givenname": "Ming-ming", "namestyle": "eastern", "prefix": "" } ], "stringName": [], "aff": [ { "rid": "aff1", "text": "1" } ], "role": [], "deceased": false }, { "name": [ { "lang": "zh", "surname": "林", "givenname": "翔宇", "namestyle": "eastern", "prefix": "" }, { "lang": "en", "surname": "LIN", "givenname": "Xiang-yu", "namestyle": "eastern", "prefix": "" } ], "stringName": [], "aff": [ { "rid": "aff1", "text": "1" } ], "role": [], "deceased": false } ], "aff": [ { "id": "aff1", "intro": [ { "lang": "zh", "label": "1", "text": "厦门理工学院　光电与通信工程学院，福建　厦门　361024", "data": [ { "name": "text", "data": "厦门理工学院　光电与通信工程学院，福建　厦门　361024" } ] }, { "lang": "en", "label": "1", "text": "School of Optoelectronics and Communication Engineering, Xiamen University of Technology, Xiamen 361024, China", "data": [ { "name": "text", "data": "School of Optoelectronics and Communication Engineering, Xiamen University of Technology, Xiamen 361024, China" } ] } ] }, { "id": "aff2", "intro": [ { "lang": "zh", "label": "2", "text": "厦门理工学院　福建省光电技术与器件重点实验室，福建　厦门　361024", "data": [ { "name": "text", "data": "厦门理工学院　福建省光电技术与器件重点实验室，福建　厦门　361024" } ] }, { "lang": "en", "label": "2", "text": "Fujian Key Laboratory of Optoelectronic Technology and Devices, Xiamen University of Technology, Xiamen 361024, China", "data": [ { "name": "text", "data": "Fujian Key Laboratory of Optoelectronic Technology and Devices, Xiamen University of Technology, Xiamen 361024, China" } ] } ] } ] }, "abstracts": [ { "lang": "zh", "data": [ { "name": "p", "data": [ { "name": "text", "data": "通过还原气氛下的高温固相反应制备了Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.994-" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "," }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "(" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "=0.001~0.006)荧光粉。利用X射线衍射仪(XRD)和荧光分光光度计分析了Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.994-" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "," }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "荧光粉的晶体结构和发光性能，通过光致发光(PL)谱和光激励发光(PSL)谱表明所有的发光中心都来源于Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "离子。在320 nm和365 nm激发下，可以观察到以470 nm为中心的蓝光发射和530 nm为中心的绿光发射。热释光测试证明，Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.994-" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "," }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "材料的俘获陷阱深，室温下受热扰动影响小，在800 nm红外光激发下，被俘获的电子释放，在发光中心中与空穴复合发光。在254 nm紫外线照射0.5 h后，用980 nm红外激光器照射，可以观察到绿色的光激励发光，结果表明Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.994-" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "," }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "具有光存储特性。" } ] } ] }, { "lang": "en", "data": [ { "name": "p", "data": [ { "name": "text", "data": "Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.994-" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "," }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "(" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "=0.001-0.006) phosphors were prepared by high-temperature solid-state reaction in a reducing atmosphere. The crystal structure and photoluminescence(PL) properties of Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.994-" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "," }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": " phosphors were investigated with X-ray diffractomer(XRD) and spectrophotometer. The PL spectra and photostimulated luminescence(PSL) spectra show that all the luminescence centers are derived from Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": " ions. Under the excitation of 320 nm and 365 nm, blue light emission centered at 470 nm and green light emission centered at 530 nm can be observed. The thermoluminescence test proved that the trap of Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.994-" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "," }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": " material is deep, and it is less affected by thermal disturbance at room temperature. Under the excitation of 800 nm infrared light, the trapped electrons are released and interact with holes in the luminescent center. After irradiated by 254 nm UV for 0.5 h, and stimulated with a 980 nm infrared laser, the phosphors exhibit obvious green PSL. The results show that Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.994-" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] } ] }, { "name": "text", "data": "-SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "," }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": " has optical storage characteristics." } ] } ] } ], "keyword": [ { "lang": "zh", "data": [ [ { "name": "text", "data": "高温固相法" } ], [ { "name": "text", "data": "Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] } ], [ { "name": "text", "data": "光致发光" } ], [ { "name": "text", "data": "光激励发光" } ], [ { "name": "text", "data": "光存储" } ] ] }, { "lang": "en", "data": [ [ { "name": "text", "data": "high temperature solid-state reaction" } ], [ { "name": "text", "data": "Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] } ], [ { "name": "text", "data": "photoluminescence" } ], [ { "name": "text", "data": "photostimulated luminescence" } ], [ { "name": "text", "data": "optical storage" } ] ] } ], "highlights": [], "body": [ { "name": "sec", "data": [ { "name": "sectitle", "data": { "title": [ { "name": "text", "data": "1　引言" } ], "level": "1", "id": "s1" } }, { "name": "p", "data": [ { "name": "text", "data": "如今是“大数据”时代，信息保存面临着新的挑战。相比磁性数据存储器，光学存储具有高效率、大容量、低能耗、长寿命等优点，促使光学数据存储快速发展起来" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "blockXref", "data": { "data": [ { "name": "xref", "data": { "text": "1", "type": "bibr", "rid": "R1", "data": [ { "name": "text", "data": "1" } ] } }, { "name": "text", "data": "-" }, { "name": "xref", "data": { "text": "2", "type": "bibr", "rid": "R2", "data": [ { "name": "text", "data": "2" } ] } } ], "rid": [ "R1", "R2" ], "text": "1-2", "type": "bibr" } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "。光激励发光材料也称电子俘获材料，是光存储技术之一，主要原理是通过在陷阱中捕获电荷载流子来存储X射线、紫外或可见光的辐射能量，然后在低能量光刺激下释放存储的能量，理论上可以用于数据的编码/解码" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "blockXref", "data": { "data": [ { "name": "xref", "data": { "text": "3", "type": "bibr", "rid": "R3", "data": [ { "name": "text", "data": "3" } ] } }, { "name": "text", "data": "-" }, { "name": "xref", "data": { "text": "4", "type": "bibr", "rid": "R4", "data": [ { "name": "text", "data": "4" } ] } } ], "rid": [ "R3", "R4" ], "text": "3-4", "type": "bibr" } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "。具有光存储性能的光激励发光材料需要满足以下几个特点:(1)陷阱要足够深，防止信息丢失；(2)深陷阱应该具有狭窄的分布，以满足低能量的红外光刺激；(3)存储信号具有良好的持久性" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "xref", "data": { "text": "5", "type": "bibr", "rid": "R5", "data": [ { "name": "text", "data": "5" } ] } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "。目前用于电子俘获光储存的材料主要有卤化物(如BaF" }, { "name": "italic", "data": [ { "name": "text", "data": "X" } ] }, { "name": "text", "data": "(" }, { "name": "italic", "data": [ { "name": "text", "data": "X" } ] }, { "name": "text", "data": "=Cl,Br)∶Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": ")和硫化物(如" }, { "name": "italic", "data": [ { "name": "text", "data": "AE" } ] }, { "name": "text", "data": "S∶Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": ",Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "(" }, { "name": "italic", "data": [ { "name": "text", "data": "AE" } ] }, { "name": "text", "data": "=Ca,Sr))等" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "blockXref", "data": { "data": [ { "name": "xref", "data": { "text": "6", "type": "bibr", "rid": "R6", "data": [ { "name": "text", "data": "6" } ] } }, { "name": "text", "data": "-" }, { "name": "xref", "data": { "text": "7", "type": "bibr", "rid": "R7", "data": [ { "name": "text", "data": "7" } ] } } ], "rid": [ "R6", "R7" ], "text": "6-7", "type": "bibr" } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "。但是，由于它们的物理/化学稳定性比较差，对环境造成污染，不能满足光学储存发展的需求，迫切需要开发新的光储存材料。" } ] }, { "name": "p", "data": [ { "name": "text", "data": "近年来，Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "由于其特殊的结构特性和优异的物理化学稳定性，引起了科学界的极大兴趣。对于基质Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "的研究，主要集中于单掺杂Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "在白光LED的应用" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "blockXref", "data": { "data": [ { "name": "xref", "data": { "text": "8", "type": "bibr", "rid": "R8", "data": [ { "name": "text", "data": "8" } ] } }, { "name": "text", "data": "-" }, { "name": "xref", "data": { "text": "9", "type": "bibr", "rid": "R9", "data": [ { "name": "text", "data": "9" } ] } } ], "rid": [ "R8", "R9" ], "text": "8-9", "type": "bibr" } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "；对于稀土双掺杂Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "的研究，主要停留在研究光学特性上(如热释光和余辉)" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "blockXref", "data": { "data": [ { "name": "xref", "data": { "text": "10", "type": "bibr", "rid": "R10", "data": [ { "name": "text", "data": "10" } ] } }, { "name": "text", "data": "-" }, { "name": "xref", "data": { "text": "13", "type": "bibr", "rid": "R13", "data": [ { "name": "text", "data": "13" } ] } } ], "rid": [ "R10", "R11", "R12", "R13" ], "text": "10-13", "type": "bibr" } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "；对其光储存详细研究的报道较少" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "blockXref", "data": { "data": [ { "name": "xref", "data": { "text": "14", "type": "bibr", "rid": "R14", "data": [ { "name": "text", "data": "14" } ] } }, { "name": "text", "data": "-" }, { "name": "xref", "data": { "text": "15", "type": "bibr", "rid": "R15", "data": [ { "name": "text", "data": "15" } ] } } ], "rid": [ "R14", "R15" ], "text": "14-15", "type": "bibr" } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "。开发以硅酸盐为基质的光存储材料可以有效避免目前光存储材料中硫元素的污染，解决材料稳定性差等问题。" } ] }, { "name": "p", "data": [ { "name": "text", "data": "本文主要采用高温固相反应法制备了不同Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "离子掺杂浓度的Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": ",Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "荧光粉。通过X射线衍射(XRD)谱对样品的结构进行表征，测试了各样品的发射光谱和激发光谱，对Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "和Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "双掺杂Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "发光材料的光致发光性质进行了详细的分析与讨论。通过热释光和光激励发光谱的测试，进一步探讨了Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": ",Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "发光材料的光储存特性。" } ] } ] }, { "name": "sec", "data": [ { "name": "sectitle", "data": { "title": [ { "name": "text", "data": "2　实验" } ], "level": "1", "id": "s2" } }, { "name": "sec", "data": [ { "name": "sectitle", "data": { "title": [ { "name": "text", "data": "2.1　实验制备" } ], "level": "2", "id": "s2a" } }, { "name": "p", "data": [ { "name": "text", "data": "采用传统的高温固相法制备Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.994-" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "," }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "荧光粉，主要原料为SrCO" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "(AR)、SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "(AR)、Eu" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "O" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "(99.99%)、Dy" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "O" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "(99.99%)、NH" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "F(AR)。按一定配比(SrCO" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "∶SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "为2∶1，量比)将所需原料放入玛瑙研钵中，用研磨棒充分研磨0.5 h，放入刚玉坩埚中；之后在还原气氛(5%H" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "+95%N" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": ")的高温气氛箱式炉中缓慢加热到1 400 ℃，样品在该温度下保温4 h；然后自然冷却至室温，取出合成的样品再次研磨均匀成细粉，最终得到Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.994-" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "," }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "荧光粉。" } ] } ] }, { "name": "sec", "data": [ { "name": "sectitle", "data": { "title": [ { "name": "text", "data": "2.2　样品表征" } ], "level": "2", "id": "s2b" } }, { "name": "p", "data": [ { "name": "text", "data": "样品的物相分析采用X'Pert PRO PANalytical(荷兰帕纳科公司)X射线衍射仪，它的辐射源为Cu Kα射线(" }, { "name": "italic", "data": [ { "name": "text", "data": "λ" } ] }, { "name": "text", "data": "=0.154 1 nm)，在40 kV电压和40 mA电流下工作，扫描速度为10(°)/min，范围为10°~70°。荧光光谱仪采用Cary Eclipse荧光分光光度计(Xe灯光源)测试了样品的光致发光谱。使用ZF-1三用紫外分析仪(30 W)在黑暗下进行紫外光照射。采用爱丁堡FLS980稳态-瞬态光谱仪加变温台(Linkam THMS600)进行光激励发光谱、热释光谱测试。" } ] } ] } ] }, { "name": "sec", "data": [ { "name": "sectitle", "data": { "title": [ { "name": "text", "data": "3　结果与讨论" } ], "level": "1", "id": "s3" } }, { "name": "sec", "data": [ { "name": "sectitle", "data": { "title": [ { "name": "text", "data": "3.1　样品物相与晶体结构" } ], "level": "2", "id": "s3a" } }, { "name": "p", "data": [ { "name": "xref", "data": { "text": "图1", "type": "fig", "rid": "F1", "data": [ { "name": "text", "data": "图1" } ] } }, { "name": "text", "data": "为Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.994-" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "," }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "(" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "=0.001,0.002,0.003,0.004,0.006)样品的XRD图。Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "和Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "的离子半径分别为0.125 nm和0.091 nm，因此它们取代离子半径约为0.126 nm的Sr而不会使晶胞结构发生变化。根据衍射峰可知，当掺杂Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "离子浓度较小时样品为β-Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "单斜晶系，随着Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "离子浓度增加，出现弱α'-Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "相。其余小的杂峰出现有可能是由于Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "和Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "的离子半径小于Sr" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "的离子半径，导致晶胞紧缩，从而使其样品的XRD衍射峰有所差异，其更深次的原因需要进一步分析。" }, { "name": "xref", "data": { "text": "图2", "type": "fig", "rid": "F2", "data": [ { "name": "text", "data": "图2" } ] } }, { "name": "text", "data": "为β-Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "的晶体结构，β相的Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "有两种不同的配位环境:Sr1有10个氧原子和Sr2有9个氧原子配位，这两个不同的Sr位置在晶格中均匀分布" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "blockXref", "data": { "data": [ { "name": "xref", "data": { "text": "16", "type": "bibr", "rid": "R16", "data": [ { "name": "text", "data": "16" } ] } }, { "name": "text", "data": "-" }, { "name": "xref", "data": { "text": "17", "type": "bibr", "rid": "R17", "data": [ { "name": "text", "data": "17" } ] } } ], "rid": [ "R16", "R17" ], "text": "16-17", "type": "bibr" } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "。根据前期研究，Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": ",Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "荧光粉的原始材料SrCO" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "∶SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "为3∶1，单掺杂Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "时只有β-Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "和多余的SrCO" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "相" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "xref", "data": { "text": "15", "type": "bibr", "rid": "R15", "data": [ { "name": "text", "data": "15" } ] } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "。本文中原始材料SrCO" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "∶SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "为2∶1时，样品均为以β相为主的Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "；当Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "离子浓度为0.006时，出现弱α'相。" } ] }, { "name": "fig", "data": { "id": "F1", "caption": [ { "lang": "zh", "label": [ { "name": "text", "data": "图1" } ], "title": [ { "name": "text", "data": "Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.994-" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "," }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "(" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "=0.001,0.002,0.003,0.004,0.006)的XRD图谱" } ] }, { "lang": "en", "label": [ { "name": "text", "data": "Fig.1" } ], "title": [ { "name": "text", "data": "XRD patterns of Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.994-" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "," }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "(" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "=0.001, 0.002, 0.003, 0.004, 0.006)" } ] } ], "subcaption": [], "note": [], "graphics": [ { "print": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123533&type=", "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123540&type=", "big": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123535&type=" } ] } }, { "name": "fig", "data": { "id": "F2", "caption": [ { "lang": "zh", "label": [ { "name": "text", "data": "图2" } ], "title": [ { "name": "text", "data": "β-Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "晶体结构" } ] }, { "lang": "en", "label": [ { "name": "text", "data": "Fig.2" } ], "title": [ { "name": "text", "data": "Crystal structure of β-Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] } ] } ], "subcaption": [], "note": [], "graphics": [ { "print": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123545&type=", "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123551&type=", "big": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123548&type=" } ] } } ] }, { "name": "sec", "data": [ { "name": "sectitle", "data": { "title": [ { "name": "text", "data": "3.2　光致发光光谱分析" } ], "level": "2", "id": "s3b" } }, { "name": "p", "data": [ { "name": "xref", "data": { "text": "图3", "type": "fig", "rid": "F3", "data": [ { "name": "text", "data": "图3" } ] } }, { "name": "text", "data": " 显示了Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.994-" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "," }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "(" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "=0.001~0.006)的发射光谱。Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "掺杂硅酸锶的发光主要由4f" }, { "name": "sup", "data": [ { "name": "text", "data": "6" } ] }, { "name": "text", "data": "5d" }, { "name": "sup", "data": [ { "name": "text", "data": "1" } ] }, { "name": "text", "data": "→4f" }, { "name": "sup", "data": [ { "name": "text", "data": "7" } ] }, { "name": "text", "data": "跃迁引起，并且强烈地受到主体晶格中局部配位的影响，即Sr有两个不同的格位，分别被Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "取代为Eu1和Eu2" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "xref", "data": { "text": "18", "type": "bibr", "rid": "R18", "data": [ { "name": "text", "data": "18" } ] } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "。" }, { "name": "xref", "data": { "text": "图3(a)", "type": "fig", "rid": "F3", "data": [ { "name": "text", "data": "图3(a)" } ] } }, { "name": "text", "data": "显示，在320 nm激发下，发射峰在470 nm和530 nm左右，分别对应Eu1和Eu2两个发光中心的5d→4f跃迁" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "xref", "data": { "text": "19", "type": "bibr", "rid": "R19", "data": [ { "name": "text", "data": "19" } ] } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "。对于Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.994-" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "," }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "荧光粉，随着Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "离子浓度的增加，以470 nm和530 nm为中心的发射强度先增大后减小，当Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "离子浓度为0.003时，发光强度最好。" }, { "name": "xref", "data": { "text": "图3(b)", "type": "fig", "rid": "F3", "data": [ { "name": "text", "data": "图3(b)" } ] } }, { "name": "text", "data": "显示了在365 nm激发下的Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.994-" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "," }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "发射谱，主峰分别位于470 nm为中心的宽蓝光发射和530 nm为中心的绿光发射，与" }, { "name": "xref", "data": { "text": "图3(a)", "type": "fig", "rid": "F3", "data": [ { "name": "text", "data": "图3(a)" } ] } }, { "name": "text", "data": "在320 nm激发下的发射主峰一致。但在365 nm激发下，530 nm的发射强度明显高于470 nm的发射强度，揭示了不同的激发波长可以改变两个发光中心峰的强度。从" }, { "name": "xref", "data": { "text": "图3(a)、(b)", "type": "fig", "rid": "F3", "data": [ { "name": "text", "data": "图3(a)、(b)" } ] } }, { "name": "text", "data": "可知，当Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "掺杂浓度为0.003时，发射强度最好。" } ] }, { "name": "fig", "data": { "id": "F3", "caption": [ { "lang": "zh", "label": [ { "name": "text", "data": "图3" } ], "title": [ { "name": "text", "data": "Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.994-" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "," }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "(" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "=0.001～0.006)的发射光谱。(a)" }, { "name": "italic", "data": [ { "name": "text", "data": "λ" } ] }, { "name": "sub", "data": [ { "name": "text", "data": "ex" } ] }, { "name": "text", "data": "=320 nm;(b)" }, { "name": "italic", "data": [ { "name": "text", "data": "λ" } ] }, { "name": "sub", "data": [ { "name": "text", "data": "ex" } ] }, { "name": "text", "data": "=365 nm。" } ] }, { "lang": "en", "label": [ { "name": "text", "data": "Fig.3" } ], "title": [ { "name": "text", "data": "Emission spectra of Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.994-" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "," }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "(" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "=0.001-0.006).(a)" }, { "name": "italic", "data": [ { "name": "text", "data": "λ" } ] }, { "name": "sub", "data": [ { "name": "text", "data": "ex" } ] }, { "name": "text", "data": "=320 nm.(b)" }, { "name": "italic", "data": [ { "name": "text", "data": "λ" } ] }, { "name": "sub", "data": [ { "name": "text", "data": "ex" } ] }, { "name": "text", "data": "=365 nm." } ] } ], "subcaption": [], "note": [], "graphics": [ { "print": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123554&type=", "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123560&type=", "big": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123557&type=" } ] } }, { "name": "p", "data": [ { "name": "text", "data": "为了进一步证明发光中心来源于Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "离子，" }, { "name": "xref", "data": { "text": "图4", "type": "fig", "rid": "F4", "data": [ { "name": "text", "data": "图4" } ] } }, { "name": "text", "data": "给出了Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.994" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "和Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.991" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": ",0.003Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "样品的发射谱及其拟合曲线。从图中可以看出，单掺杂Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "和双掺杂Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "、Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "的发射谱一致，通过其高斯拟合出两个峰，分别对应于Eu1和Eu2的发光。" } ] }, { "name": "fig", "data": { "id": "F4", "caption": [ { "lang": "zh", "label": [ { "name": "text", "data": "图4" } ], "title": [ { "name": "text", "data": "Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.994" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "和Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.991" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": ",0.003Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "样品的发射谱及其拟合曲线" } ] }, { "lang": "en", "label": [ { "name": "text", "data": "Fig.4" } ], "title": [ { "name": "text", "data": "Emission spectra and Gaussian fitting curves of Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.994" } ] }, { "name": "text", "data": "-SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": " and Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.991" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": ",0.003Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": " samples" } ] } ], "subcaption": [], "note": [], "graphics": [ { "print": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123563&type=", "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123568&type=", "big": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123564&type=" } ] } }, { "name": "p", "data": [ { "name": "xref", "data": { "text": "图5", "type": "fig", "rid": "F5", "data": [ { "name": "text", "data": "图5" } ] } }, { "name": "text", "data": "为Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.994-" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "," }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "(" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "=0.001~0.006)荧光粉的激发光谱。从" }, { "name": "xref", "data": { "text": "图5(a)", "type": "fig", "rid": "F5", "data": [ { "name": "text", "data": "图5(a)" } ] } }, { "name": "text", "data": "可以看出，监测470 nm的发光，激发谱均显示出以320 nm为中心的宽带谱，这主要由Eu1的4f®5d跃迁引起。如" }, { "name": "xref", "data": { "text": "图5(b)", "type": "fig", "rid": "F5", "data": [ { "name": "text", "data": "图5(b)" } ] } }, { "name": "text", "data": "所示，监测530 nm发光下的所有激发谱显示以365 nm为中心的宽带谱，由Eu2的4f®5d跃迁导致" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "xref", "data": { "text": "20", "type": "bibr", "rid": "R20", "data": [ { "name": "text", "data": "20" } ] } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "。结果表明，监测不同发射位置时，样品的激发谱不同，但是它们的强度规律一致。" } ] }, { "name": "fig", "data": { "id": "F5", "caption": [ { "lang": "zh", "label": [ { "name": "text", "data": "图5" } ], "title": [ { "name": "text", "data": "Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.994-" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "," }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "(" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "=0.001～0.006)的激发光谱。(a)" }, { "name": "italic", "data": [ { "name": "text", "data": "λ" } ] }, { "name": "sub", "data": [ { "name": "text", "data": "em" } ] }, { "name": "text", "data": "=470 nm;(b)" }, { "name": "italic", "data": [ { "name": "text", "data": "λ" } ] }, { "name": "sub", "data": [ { "name": "text", "data": "em" } ] }, { "name": "text", "data": "=530 nm。" } ] }, { "lang": "en", "label": [ { "name": "text", "data": "Fig.5" } ], "title": [ { "name": "text", "data": "Excitation spectra of Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.994-" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "," }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "(" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "=0.001-0.006).(a)" }, { "name": "italic", "data": [ { "name": "text", "data": "λ" } ] }, { "name": "sub", "data": [ { "name": "text", "data": "em" } ] }, { "name": "text", "data": "=470 nm.(b)" }, { "name": "italic", "data": [ { "name": "text", "data": "λ" } ] }, { "name": "sub", "data": [ { "name": "text", "data": "em" } ] }, { "name": "text", "data": "=530 nm." } ] } ], "subcaption": [], "note": [], "graphics": [ { "print": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123572&type=", "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123580&type=", "big": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123576&type=" } ] } } ] }, { "name": "sec", "data": [ { "name": "sectitle", "data": { "title": [ { "name": "text", "data": "3.3　样品的热释光分析" } ], "level": "2", "id": "s3c" } }, { "name": "p", "data": [ { "name": "text", "data": "材料的光存储特性与陷阱的能级之间有直接联系，缺陷的产生是由于材料中掺杂了稀土离子，同时形成了电子陷阱能级。当样品受到紫外光激发时，处于基态的电子受激发后跃迁至激发态，同时激发态的电子迁移回基态，产生光致发光。而随着电子陷阱能级的引入，当电子从基态跃迁到激发态时，部分电子被陷阱能级捕获" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "blockXref", "data": { "data": [ { "name": "xref", "data": { "text": "21", "type": "bibr", "rid": "R21", "data": [ { "name": "text", "data": "21" } ] } }, { "name": "text", "data": "-" }, { "name": "xref", "data": { "text": "22", "type": "bibr", "rid": "R22", "data": [ { "name": "text", "data": "22" } ] } } ], "rid": [ "R21", "R22" ], "text": "21-22", "type": "bibr" } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "。当停止紫外光照射时，由于周围环境热扰动的作用，被俘获的电子将从陷阱能级中释放出来，在发光中心与空穴复合发光。由于陷阱深度不同，室温对深陷阱的影响较小。" } ] }, { "name": "p", "data": [ { "name": "xref", "data": { "text": "图6", "type": "fig", "rid": "F6", "data": [ { "name": "text", "data": "图6" } ] } }, { "name": "text", "data": "为Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.991" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": ",0.003Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "和S" }, { "name": "inlineformula", "data": [ { "name": "math", "data": { "graphicsData": { "print": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123584&type=", "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123593&type=", "big": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123590&type=" } } } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "的热释光谱。根据相关文献报道，S" }, { "name": "inlineformula", "data": [ { "name": "math", "data": { "graphicsData": { "print": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123596&type=", "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123607&type=", "big": 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"data": "的余辉衰减时间为10 min" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "xref", "data": { "text": "18", "type": "bibr", "rid": "R18", "data": [ { "name": "text", "data": "18" } ] } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "。为了排除浅陷阱的余辉影响，将样品置于254 nm紫外光下激发10 min，然后置于室温下等待10 min后，将样品放入热释光测量仪中，按1 K/s的升温速率升温至600 K进行测量。" }, { "name": "xref", "data": { "text": "图6", "type": "fig", "rid": "F6", "data": [ { "name": "text", "data": "图6" } ] } }, { "name": "text", "data": "的热释光谱表明，在β-Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "晶格中，Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "不仅是发光中心，而且具有陷阱能级。Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "、Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "双掺杂比单掺杂Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "的热释光强度更高，陷阱捕获的电子更多。与文献[" }, { "name": "xref", "data": { "text": "14", "type": "bibr", "rid": "R14", "data": [ { "name": "text", "data": "14" } ] } }, { "name": "text", "data": "]对比，进一步验证了Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "离子的引入提高了陷阱的强度。样品在350~600 K范围内有2个热释光峰T1和T2，峰位所对应的温度为423 K和519 K。图中T1和T2的强度对应陷阱能级中所含的电子数量，陷阱所对应的温度为375~450 K、475~550 K，说明在室温下，深陷阱中的载流子受热扰动影响小，其中的电子不易释放出来，表明Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": ",Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "材料具有信息储存特性。" } ] }, { "name": "fig", "data": { "id": "F6", "caption": [ { "lang": "zh", "label": [ { "name": "text", "data": "图6" } ], "title": [ { "name": "text", "data": "Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.991" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": ",0.003Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "和S" }, { "name": "inlineformula", "data": [ { "name": "math", "data": { "graphicsData": { "print": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123611&type=", "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123620&type=", "big": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123617&type=" } } } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "热释光谱" } ] }, { "lang": "en", "label": [ { "name": "text", "data": "Fig.6" } ], "title": [ { "name": "text", "data": "Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.991" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": ",0.003Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": " and S" }, { "name": "inlineformula", "data": [ { "name": "math", "data": { "graphicsData": { "print": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123624&type=", "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123632&type=", "big": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123629&type=" } } } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": " thermoluminescence glow curve" } ] } ], "subcaption": [], "note": [], "graphics": [ { "print": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123635&type=", "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123646&type=", "big": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123639&type=" } ] } }, { "name": "p", "data": [ { "name": "text", "data": "为了进一步探究热释光性质，需要计算陷阱能级的深度，在此之前需要选定符合实验曲线的动力学模型，本文采用“通用级”动力学过程如下" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "xref", "data": { "text": "23", "type": "bibr", "rid": "R23", "data": [ { "name": "text", "data": "23" } ] } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": ":" } ] }, { "name": "dispformula", "data": { "label": [ { "name": "text", "data": "(1)" } ], "data": [ { "name": "math", "data": { "graphicsData": { "print": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123649&type=", "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123652&type=", "big": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123657&type=" } } } ], "id": "DF1" } }, { "name": "p", "data": [ { "name": "text", "data": "其中，" }, { "name": "italic", "data": [ { "name": "text", "data": "E" } ] }, { "name": "text", "data": "代表陷阱深度，" }, { "name": "italic", "data": [ { "name": "text", "data": "K" } ] }, { "name": "sub", "data": [ { "name": "text", "data": "B" } ] }, { "name": "text", "data": "为波尔兹曼常数，" }, { "name": "italic", "data": [ { "name": "text", "data": "n" } ] }, { "name": "sub", "data": [ { "name": "text", "data": "0" } ] }, { "name": "text", "data": "为被陷阱俘获的载流子(电子或空穴)在初始温度" }, { "name": "italic", "data": [ { "name": "text", "data": "T" } ] }, { "name": "text", "data": "为0时的浓度，" }, { "name": "italic", "data": [ { "name": "text", "data": "β" } ] }, { "name": "text", "data": "表示升温速率，" }, { "name": "italic", "data": [ { "name": "text", "data": "l" } ] }, { "name": "text", "data": "是动力学级数，" }, { "name": "italic", "data": [ { "name": "text", "data": "s" } ] }, { "name": "text", "data": "为逃逸频率因子，" }, { "name": "italic", "data": [ { "name": "text", "data": "T" } ] }, { "name": "sub", "data": [ { "name": "text", "data": "m" } ] }, { "name": "text", "data": "是热释光谱峰值对应的温度。" }, { "name": "italic", "data": [ { "name": "text", "data": "E" } ] }, { "name": "text", "data": "和" }, { "name": "italic", "data": [ { "name": "text", "data": "n" } ] }, { "name": "sub", "data": [ { "name": "text", "data": "0" } ] }, { "name": "text", "data": "是描述陷阱物理特性的重要参数。忽略" }, { "name": "italic", "data": [ { "name": "text", "data": "s" } ] }, { "name": "text", "data": "对" }, { "name": "italic", "data": [ { "name": "text", "data": "T" } ] }, { "name": "sub", "data": [ { "name": "text", "data": "m" } ] }, { "name": "text", "data": "的影响，并假设电子逃逸陷阱的频率为1/" }, { "name": "italic", "data": [ { "name": "text", "data": "s" } ] }, { "name": "text", "data": "，利用公式(2)可得" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "xref", "data": { "text": "24", "type": "bibr", "rid": "R24", "data": [ { "name": "text", "data": "24" } ] } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": ":" } ] }, { "name": "dispformula", "data": { "label": [ { "name": "text", "data": "(2)" } ], "data": [ { "name": "math", "data": { "graphicsData": { "print": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123660&type=", "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123664&type=", "big": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123670&type=" } } } ], "id": "DF2" } }, { "name": "p", "data": [ { "name": "text", "data": "根据公式(2)计算得出陷阱的深度，由" }, { "name": "xref", "data": { "text": "表1", "type": "table", "rid": "T1", "data": [ { "name": "text", "data": "表1" } ] } }, { "name": "text", "data": "的计算结果可知，陷阱深度为1.038 eV，在信息存储中贡献更大。" } ] }, { "name": "table", "data": { "id": "T1", "caption": [ { "lang": "zh", "label": [ { "name": "text", "data": "表1" } ], "title": [ { "name": "text", "data": "热释光峰值和陷阱深度" } ] }, { "lang": "en", "label": [ { "name": "text", "data": "Tab.1" } ], "title": [ { "name": "text", "data": "Peak of the thermoluminescence and trap depth" } ] } ], "note": [], "table": [ { "head": [ [ { "colspan": "1", "rowspan": "1", "align": "center", "style": "border-top:1px solid #000;border-bottom:1px solid #000;", "data": [ { "name": "text", "data": 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{ "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123676&type=", "big": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123674&type=" } } } ] }, { "name": "sec", "data": [ { "name": "sectitle", "data": { "title": [ { "name": "text", "data": "3.4　Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.991" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": ",0.003Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "的光存储" } ], "level": "2", "id": "s3d" } }, { "name": "p", "data": [ { "name": "xref", "data": { "text": "图7", "type": "fig", "rid": "F7", "data": [ { "name": "text", "data": "图7" } ] } }, { "name": "text", "data": "显示了在紫外光照射0.5 h后，用800 nm红外光激励Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.991" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": ",0.003Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "荧光粉的光激励发射光谱，同时显示了在365 nm激发下的发射谱，用来作对比。从图中可以看出，光激励发射光谱的主峰在470 nm和530 nm左右，与在365 nm激发下的发射谱的主峰一致，表明晶格中的发光中心来自Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "离子" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "blockXref", "data": { "data": [ { "name": "xref", "data": { "text": "25", "type": "bibr", "rid": "R25", "data": [ { "name": "text", "data": "25" } ] } }, { "name": "text", "data": "-" }, { "name": "xref", "data": { "text": "26", "type": "bibr", "rid": "R26", "data": [ { "name": "text", "data": "26" } ] } } ], "rid": [ "R25", "R26" ], "text": "25-26", "type": "bibr" } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "。另外，在光激励发射光谱中可以看到623 nm处有较小的峰，具体的机理有待进一步研究。光激励发光谱在530 nm左右的峰值强度最高，归因于Eu2的5d→4f跃迁。在光激励发射谱中，相比530 nm的峰值强度，470 nm的峰值强度明显更弱，这表明当用800 nm光进行光激励表征时，被捕获的载流子更易释放到Eu2的格位，所以Eu2的发光占主导。" } ] }, { "name": "fig", "data": { "id": "F7", "caption": [ { "lang": "zh", "label": [ { "name": "text", "data": "图7" } ], "title": [ { "name": "text", "data": "Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.991" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": ",0.003Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "的PL(在365 nm激发)和PSL(在800 nm处激励)" } ] }, { "lang": "en", "label": [ { "name": "text", "data": "Fig.7" } ], "title": [ { "name": "text", "data": "Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.991" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": ",0.003Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": " PL(excited at 365 nm) and PSL(stimulated at 800 nm)" } ] } ], "subcaption": [], "note": [], "graphics": [ { "print": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123681&type=", "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123690&type=", "big": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123685&type=" } ] } }, { "name": "p", "data": [ { "name": "text", "data": "为了更直观地表达Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.991" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": ",0.003Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "荧光粉具有光存储特性，如" }, { "name": "xref", "data": { "text": "图7", "type": "fig", "rid": "F7", "data": [ { "name": "text", "data": "图7" } ] } }, { "name": "text", "data": "右上角，a为Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.991" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": ",0.003Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "荧光粉，将其放在254 nm紫外光下照射0.5 h(如图b)，然后用小型980 nm的红外激光器照射，可以看到明显的绿光(如图c所示)。所有测试均在黑暗环境下进行，结果表明Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.991" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": ",0.003Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "具有光存储特性。" } ] } ] }, { "name": "sec", "data": [ { "name": "sectitle", "data": { "title": [ { "name": "text", "data": "3.5　Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": ",Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "光激励发光机理分析" } ], "level": "2", "id": "s3e" } }, { "name": "p", "data": [ { "name": "text", "data": "　" }, { "name": "xref", "data": { "text": "图8", "type": "fig", "rid": "F8", "data": [ { "name": "text", "data": "图8" } ] } }, { "name": "text", "data": "为Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": ",Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "样品的光致发光和光激励发光机理图。如图所示，在紫外光激发下，Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "的基态(4f" }, { "name": "sup", "data": [ { "name": "text", "data": "7" } ] }, { "name": "text", "data": ")电子被激发到激发态(4f" }, { "name": "sup", "data": [ { "name": "text", "data": "6" } ] }, { "name": "text", "data": "5d" }, { "name": "sup", "data": [ { "name": "text", "data": "1" } ] }, { "name": "text", "data": ")，由于激发态不稳定，一部分电子跃迁回基态，产生光致发光" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "blockXref", "data": { "data": [ { "name": "xref", "data": { "text": "27", "type": "bibr", "rid": "R27", "data": [ { "name": "text", "data": "27" } ] } }, { "name": "text", "data": "-" }, { "name": "xref", "data": { "text": "28", "type": "bibr", "rid": "R28", "data": [ { "name": "text", "data": "28" } ] } } ], "rid": [ "R27", "R28" ], "text": "27-28", "type": "bibr" } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "。另一部分Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "的激发电子被陷阱俘获，空穴被空穴束缚中心俘获，在低能量的红外光照射下，俘获电子从陷阱中被激励出来，通过导带或隧穿与被束缚的空穴的发光中心复合产生发光，该发光过程称为光激励发光。" } ] }, { "name": "fig", "data": { "id": "F8", "caption": [ { "lang": "zh", "label": [ { "name": "text", "data": "图8" } ], "title": [ { "name": "text", "data": "Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": ",Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "样品的光致发光和光激励发光机理示意图" } ] }, { "lang": "en", "label": [ { "name": "text", "data": "Fig.8" } ], "title": [ { "name": "text", "data": "PL and PSL luminescence mechanism of Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": ",Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] } ] } ], "subcaption": [], "note": [], "graphics": [ { "print": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123694&type=", "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123701&type=", "big": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=22123697&type=" } ] } } ] } ] }, { "name": "sec", "data": [ { "name": "sectitle", "data": { "title": [ { "name": "text", "data": "4　结论" } ], "level": "1", "id": "s4" } }, { "name": "p", "data": [ { "name": "text", "data": "本文通过高温固相反应合成了Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "1.994-" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶0.006Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "," }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "(" }, { "name": "italic", "data": [ { "name": "text", "data": "x" } ] }, { "name": "text", "data": "=0.001~0.006)荧光粉。原始材料SrCO" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "∶SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "为2∶1时，无SrCO" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "相出现，样品主相均为β相的Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "。光致发光谱表明，所有的发光中心都来源于Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "的5d→4f跃迁。热释光测试结果显示，双掺杂Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": "、Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "的Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "陷阱深，室温下受热扰动影响小，深陷阱中的电子被800 nm红外激光激发，释放电子与空穴结合发光。黑暗环境下，紫外光照射0.5 h后，用980 nm红外光激光器照射，可以明显观察到绿色亮光。研究结果表明，Sr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "2+" } ] }, { "name": "text", "data": ",Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "荧光粉具有光存储特性。" } ] }, { "name": "p", "data": [ { "name": "text", "data": "本文专家审稿意见及作者回复内容的下载地址:http://cjl.lightpublishing.cn/thesisDetails#10.37188/CJL.20210255." } ] } ] } ], "footnote": [], "reflist": { "title": [ { "name": "text", "data": "参考文献:" } ], "data": [ { "id": "R1", "label": "[1]", "citation": [ { "lang": "en", "text": [ { "name": 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