Synthesis of Monodisperse CsPbBr<sub>3</sub>@SiO<sub>2</sub> Nanoparticles for Flexible Display and Anti-counterfeiting

DING Meng-yu; ZHENG Biao; WEI Wei-ping; CHEN Lu-yao; WU Xiao-ping; HONG Jin-quan; HUANG Chun-lei; WANG Jun

doi:10.37188/CJL.20220156

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Synthesis of Monodisperse CsPbBr₃@SiO₂ Nanoparticles for Flexible Display and Anti-counterfeiting

Luminescence Applications and Interdisciplinary Fields | Updated：2022-10-19

- Synthesis of Monodisperse CsPbBr₃@SiO₂ Nanoparticles for Flexible Display and Anti-counterfeiting Enhanced Publication
- Chinese Journal of Luminescence Vol.43, Issue 8, (2022)
- Affiliations：
  
  College of Material and Chemical Engineering， Minjiang University,Fuzhou,China,350108;School of Materials Science and Engineering， Fujian University of Technology,Fuzhou,China,350118;College of Physics and Electronics Engineering， Minjiang University,Fuzhou,China,350108
- Author bio：
- Funds：
  
  National Natural Science Foundation of China(12004153;12174172);Natural Science Foundation of Fujian(2019J05110;2022J011118);Science and Technology Program of Fuzhou City(2021⁃SG⁃271);Fuzhou Institute of Oceanography Project(2021F06)
- DOI：10.37188/CJL.20220156 CLC： O482.31
- Published：05 August 2022，
  
  Received：03 May 2022，
  
  Revised：23 May 2022，
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丁梦宇,郑标,魏维平等.单分散CsPbBr₃@SiO₂纳米颗粒制备及其在柔性显示与荧光防伪中的应用[J].发光学报,2022,43(08):1309-1318.

DING Meng-yu,ZHENG Biao,WEI Wei-ping,et al.Synthesis of Monodisperse CsPbBr₃@SiO₂ Nanoparticles for Flexible Display and Anti-counterfeiting[J].Chinese Journal of Luminescence,2022,43(08):1309-1318.
丁梦宇,郑标,魏维平等.单分散CsPbBr₃@SiO₂纳米颗粒制备及其在柔性显示与荧光防伪中的应用[J].发光学报,2022,43(08):1309-1318. DOI： 10.37188/CJL.20220156.

DING Meng-yu,ZHENG Biao,WEI Wei-ping,et al.Synthesis of Monodisperse CsPbBr₃@SiO₂ Nanoparticles for Flexible Display and Anti-counterfeiting[J].Chinese Journal of Luminescence,2022,43(08):1309-1318. DOI： 10.37188/CJL.20220156.

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"data": "College of Physics and Electronics Engineering， Minjiang University， Fuzhou 350108， China" } ] } ] } ] }, "abstracts": [ { "lang": "zh", "data": [ { "name": "p", "data": [ { "name": "text", "data": "为了提高钙钛矿纳米晶CsPb" }, { "name": "italic", "data": [ { "name": "text", "data": "X" } ] }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "（" }, { "name": "italic", "data": [ { "name": "text", "data": "X" } ] }, { "name": "text", "data": "=Cl， Br， I）在水或热等环境中的稳定性，本文采用热注射法合成了3‐氨丙基‐三乙氧基硅烷（APTES）修饰的CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "纳米晶，在此基础上，以正硅酸四甲基酯（TMOS）为硅源制备了CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "核壳结构纳米颗粒。通过X射线衍射、透射电子显微镜和荧光光谱仪等测试手段对样品的结构、形貌、光谱特性及稳定性等进行了分析。结果表明，CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "纳米晶表面形成了SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "壳层，同时，CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "纳米颗粒仍保持优异的光学性能。更重要的是，SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "壳层显著提高了CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "的水、热稳定性，CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "在60 ℃加热30 min后发光强度可以保持初始强度的81%，浸水100 min后发光强度仍保持初始强度的75.2%。此外，我们设计了CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "‐聚二甲基硅氧烷（PDMS）复合薄膜，实现了CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "在柔性显示与荧光防伪方面的应用，有望为柔性显示和荧光防伪材料的开发提供参考。" } ] } ] }, { "lang": "en", "data": [ { "name": "p", "data": [ { "name": "text", "data": "To improve the stabilities of all-inorganic perovskite nanocrystals（NCs） CsPb" }, { "name": "italic", "data": [ { "name": "text", "data": "X" } ] }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "（" }, { "name": "italic", "data": [ { "name": "text", "data": "X" } ] }, { "name": "text", "data": "=Cl， Br， I） under water or thermal conditions， 3-aminopropyl-triethoxysilane（APTES） modified CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": " NCs were synthesized by a hot-injection method， and then CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": " core-shell nanoparticles（NPs） were prepared by using tetramethyl orthosilicate（TMOS） as silicon source. The structures， morphologies， optical properties and stabilities of the CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": " samples were characterized and analyzed by X-ray diffractions， transmission electron microscopy and fluorescence spectrometer. The results show that the SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": " shell forms uniformly on surface of CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": " NCs， which still shows excellent optical properties. More importantly， the stabilities of CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": " NPs are significantly improved in water or thermal atmosphere. The photoluminescence intensity of CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": " remains 81% under heated at 60 ℃ for 30 min， and it remains 75.2% when mixed with water for 100 min. Furthermore， we fabricated CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "-polydimethylsiloxane（PDMS） composite films to explore the applications of CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": " in the field of flexible display and fluorescent anti-counterfeiting." } ] } ] } ], "keyword": [ { "lang": "zh", "data": [ [ { "name": "text", "data": "钙钛矿纳米晶" } ], [ { "name": "text", "data": "核壳结构" } ], [ { "name": "text", "data": "光学性能" } ], [ { "name": "text", "data": "柔性显示" } ], [ { "name": "text", "data": "荧光防伪" } ] ] }, { "lang": "en", "data": [ [ { "name": "text", "data": "perovskite nanocrystals" } ], [ { "name": "text", "data": "core-shell structure" } ], [ { "name": "text", "data": "optical properties" } ], [ { "name": "text", "data": "flexible display" } ], [ { "name": "text", "data": "fluorescent anti-counterfeiting" } ] ] } ], "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": "全无机钙钛矿纳米晶CsPb" }, { "name": "italic", "data": [ { "name": "text", "data": "X" } ] }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "（" }, { "name": "italic", "data": [ { "name": "text", "data": "X" } ] }, { "name": "text", "data": "＝Cl, Br, I）具有高光致发光量子产率、宽色域、波长可调和窄半峰宽以及高光学增益等优点" }, { "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": "3", "type": "bibr", "rid": "R3", "data": [ { "name": "text", "data": "3" } ] } } ], "rid": [ "R1", "R2", "R3" ], "text": "1-3", "type": "bibr" } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "，在发光二极管、太阳能电池、传感器、激光、光催化和光电探测等领域呈现出广阔的应用前景" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "blockXref", "data": { "data": [ { "name": "xref", "data": { "text": "4", "type": "bibr", "rid": "R4", "data": [ { "name": "text", "data": "4" } ] } }, { "name": "text", "data": "-" }, { "name": "xref", "data": { "text": "9", "type": "bibr", "rid": "R9", "data": [ { "name": "text", "data": "9" } ] } } ], "rid": [ "R4", "R5", "R6", "R7", "R8", "R9" ], "text": "4-9", "type": "bibr" } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "。然而，CsPb" }, { "name": "italic", "data": [ { "name": "text", "data": "X" } ] }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "存在高表面缺陷与非辐射载流子复合，同时，CsPb" }, { "name": "italic", "data": [ { "name": "text", "data": "X" } ] }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "在高温下容易发生相变和表面配体脱落，与水分子接触也会使其表面发生降解，导致CsPb" }, { "name": "italic", "data": [ { "name": "text", "data": "X" } ] }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "具有较差的水热稳定性，严重阻碍了其商业化应用" }, { "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": "11", "type": "bibr", "rid": "R11", "data": [ { "name": "text", "data": "11" } ] } } ], "rid": [ "R10", "R11" ], "text": "10-11", "type": "bibr" } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "。" } ] }, { "name": "p", "data": [ { "name": "text", "data": "为了提高CsPb" }, { "name": "italic", "data": [ { "name": "text", "data": "X" } ] }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "纳米晶的稳定性，国内外研究者提出了许多解决方法，包括表面包覆" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "blockXref", "data": { "data": [ { "name": "xref", "data": { "text": "12", "type": "bibr", "rid": "R12", "data": [ { "name": "text", "data": "12" } ] } }, { "name": "text", "data": "-" }, { "name": "xref", "data": { "text": "14", "type": "bibr", "rid": "R14", "data": [ { "name": "text", "data": "14" } ] } } ], "rid": [ "R12", "R13", "R14" ], "text": "12-14", "type": "bibr" } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "、离子掺杂" }, { "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": "、配体工程" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "xref", "data": { "text": "16", "type": "bibr", "rid": "R16", "data": [ { "name": "text", "data": "16" } ] } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "等。表面包覆是一种有效提升CsPb" }, { "name": "italic", "data": [ { "name": "text", "data": "X" } ] }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "水热稳定性的方法，其中，SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "具有化学性质稳定、生物相容性好、价格低廉等优点，是一种理想的CsPb" }, { "name": "italic", "data": [ { "name": "text", "data": "X" } ] }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "包覆材料" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "xref", "data": { "text": "17", "type": "bibr", "rid": "R17", "data": [ { "name": "text", "data": "17" } ] } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "。2016年，Wang等" }, { "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": "在室温下通过简单的搅拌混合法在介孔SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "中合成了CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@mSiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "复合材料，该复合材料表现出良好的光热稳定性。尽管如此，CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "量子点在mSiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "孔隙中容易产生团聚现象，引起荧光猝灭。Sun等" }, { "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": "利用3‐氨丙基‐三乙氧基硅烷（APTES）与空气中的水分子进行水解反应，在CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "量子点表面形成SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "壳层，显著提高了量子点的稳定性；然而缓慢的水解过程使水分子长时间吸附在量子点表面，容易破坏量子点的结构和形貌。Zhao等" }, { "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": "和Li等" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "xref", "data": { "text": "21", "type": "bibr", "rid": "R21", "data": [ { "name": "text", "data": "21" } ] } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "通过控制APTES的水解速率合成了形貌均匀的CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "复合材料，这种复合材料具有较高的量子产率和稳定性，但是，该方法形成的SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "壳层较薄（1~2.7 nm），对CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "稳定性的保护效果有限。由此可见，在SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "包覆策略中缩短水分子在CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "表面的吸附时间、同时增加SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "壳层厚度是提高CsPb" }, { "name": "italic", "data": [ { "name": "text", "data": "X" } ] }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "稳定性的有效方法。" } ] }, { "name": "p", "data": [ { "name": "text", "data": "本文首先制备APTES修饰的CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "纳米晶，APTES既钝化了CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "表面的缺陷，又为SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "壳层形成提供—SiOCH" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "与—SiOH基团。在此基础上，以水解速率较快的正硅酸四甲基酯（TMOS）作为硅源，通过控制水解速率制备较厚层壳的CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "纳米颗粒，研究了SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "包覆对CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "光学性能与稳定性的影响。结果表明，CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "具有优异的光学性能和水、热稳定性。此外，我们对CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "在柔性显示和荧光防伪中的应用进行了初步探索，将CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "与聚二甲基硅氧烷（PDMS）相结合制备了柔性可拉伸复合薄膜，实现了CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "在柔性显示和荧光防伪中的应用。" } ] } ] }, { "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　实验试剂" } ], "level": "2", "id": "s2a" } }, { "name": "p", "data": [ { "name": "text", "data": "1-十八烯（ODE, 90%）、油酸（OA, 90%）、溴化铅（PbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "，99.99%）、碳酸铯（Cs" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "CO" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "，99.9%）、TMOS、APTES、PDMS购买于阿拉丁试剂有限公司；正己烷和乙酸乙酯购买于国药集团。其余未指明纯度的试剂均为分析纯，所有试剂使用前均未进一步纯化。" } ] } ] }, { "name": "sec", "data": [ { "name": "sectitle", "data": { "title": [ { "name": "text", "data": "2.2　样品制备" } ], "level": "2", "id": "s2b" } }, { "name": "sec", "data": [ { "name": "sectitle", "data": { "title": [ { "name": "text", "data": "2.2.1　油酸铯前驱体制备" } ], "level": "3", "id": "s2b1" } }, { "name": "p", "data": [ { "name": "text", "data": "取0.814 g Cs" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "CO" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "、2.5 mL OA、40 mL ODE置于三颈烧瓶中，在氩气氛围下，120 ℃加热搅拌30 min，使前驱体充分溶解，再将反应温度升至150 ℃，继续反应30 min，获得油酸铯前驱体溶液。" } ] } ] }, { "name": "sec", "data": [ { "name": "sectitle", "data": { "title": [ { "name": "text", "data": "2.2.2　CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "纳米晶制备" } ], "level": "3", "id": "s2b2" } }, { "name": "p", "data": [ { "name": "text", "data": "将0.27 g PbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "、20 mL ODE和1 mL OA加入到100 mL的三颈烧瓶中，在氩气氛围下，120 ℃加热搅拌30 min。在该温度下，缓慢地向烧瓶中加入2 mL APTES。待溶液澄清时，将温度升至140 ℃，继续反应30 min，随后快速注入1 mL预热后的油酸铯前驱体溶液；继续反应5 s后，放入冰水中迅速冷却至室温，获得APTES修饰的CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "纳米晶。" } ] } ] }, { "name": "sec", "data": [ { "name": "sectitle", "data": { "title": [ { "name": "text", "data": "2.2.3　CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "核壳结构纳米颗粒制备" } ], "level": "3", "id": "s2b3" } }, { "name": "p", "data": [ { "name": "xref", "data": { "text": "图1", "type": "fig", "rid": "F1", "data": [ { "name": "text", "data": "图1" } ] } }, { "name": "text", "data": "为CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "制备流程示意图，采用乙酸乙酯和正己烷对APTES修饰的CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "进行纯化，去除尚未反应的前驱体和多余有机物。随后，将沉淀分散于5 mL正己烷，加入10 μL TMOS连续搅拌3 h，将所得反应溶液在11 000 r/min转速下离心5 min，去除上清液。最后，将沉淀分散于5 mL正己烷，得到CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "核壳结构纳米颗粒。" } ] }, { "name": "fig", "data": { "id": "F1", "caption": [ { "lang": "zh", "label": [ { "name": "text", "data": "图1" } ], "title": [ { "name": "text", "data": "CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "制备流程示意图" } ] }, { "lang": "en", "label": [ { "name": "text", "data": "Fig.1" } ], "title": [ { "name": "text", "data": "Schematic illustration of the synthesis of CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] } ] } ], "subcaption": [], "note": [], "graphics": [ { "print": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865227&type=", "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865234&type=", "big": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865231&type=", "width": "124.03668213", "height": "49.02200317", "fontsize": "" } ] } } ] }, { "name": "sec", "data": [ { "name": "sectitle", "data": { "title": [ { "name": "text", "data": "2.2.4　CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "‐PDMS柔性薄膜制备" } ], "level": "3", "id": "s2b4" } }, { "name": "p", "data": [ { "name": "text", "data": "取15 mg CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "粉末分散在200 μL正己烷中，与1 g PDMS充分混合，静置消泡后旋涂在刻有图案的掩膜版上，放入60 ℃烘箱中加热固化。" } ] } ] } ] }, { "name": "sec", "data": [ { "name": "sectitle", "data": { "title": [ { "name": "text", "data": "2.3　测试与表征" } ], "level": "2", "id": "s2c" } }, { "name": "p", "data": [ { "name": "text", "data": "采用Hitachi-SU8010型扫描电子显微镜和Hitachi-HT7700型透射电子显微镜对样品的形貌结构进行表征；使用Rigaku-MiniFlex Ⅱ型X射线粉末衍射仪对样品进行物相鉴定；使用Thermo Scientific Nicolet iS50型傅立叶变换红外光谱仪测试样品的红外变换光谱；采用PerkinElmer- Lambda 950型紫外-可见-近红外分光光度计测量样品的吸收光谱；采用配备积分球的Edinburgh Instruments-FLS1000型荧光光谱仪和375 nm的半导体脉冲激光器测试样品的发射光谱、量子产率和荧光衰减曲线。" } ] } ] } ] }, { "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　结构与形貌分析" } ], "level": "2", "id": "s3a" } }, { "name": "p", "data": [ { "name": "xref", "data": { "text": "图2", "type": "fig", "rid": "F2", "data": [ { "name": "text", "data": "图2" } ] } }, { "name": "text", "data": "（a）为CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "和CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "的XRD图，由图可知，二者的各个衍射峰位置均与立方相CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "的标准卡片" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "xref", "data": { "text": "22", "type": "bibr", "rid": "R22", "data": [ { "name": "text", "data": "22" } ] } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "（JCPDS No.75-0412）相吻合，且无杂峰，说明SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "壳层没有扰乱CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "的晶格，制备得到的CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "为纯立方相；同时，CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "在20°~30°处出现了SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "的特征带" }, { "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": "xref", "data": { "text": "图2", "type": "fig", "rid": "F2", "data": [ { "name": "text", "data": "图2" } ] } }, { "name": "text", "data": "（b）为CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "和CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "的傅立叶红外变换（FT-IR）光谱，由图可知，在2 860 cm" }, { "name": "sup", "data": [ { "name": "text", "data": "-1" } ] }, { "name": "text", "data": "和2 920 cm" }, { "name": "sup", "data": [ { "name": "text", "data": "-1" } ] }, { "name": "text", "data": "处出现了明显的C—H键振动峰" }, { "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": "，这是CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "中有机配体（OA和APTES）产生的振动峰，同时1 650，1 550，1 470 cm" }, { "name": "sup", "data": [ { "name": "text", "data": "-1" } ] }, { "name": "text", "data": "处的N—H键振动峰以及1 070 cm" }, { "name": "sup", "data": [ { "name": "text", "data": "-1" } ] }, { "name": "text", "data": "处的Si—O—C键振动峰也证明了APTES的存在" }, { "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": "。从CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "的FT-IR光谱中可以看出，位于1 100 cm" }, { "name": "sup", "data": [ { "name": "text", "data": "-1" } ] }, { "name": "text", "data": "处的Si—O—Si键振动峰得到了增强，而C—H和N—H峰值逐渐减弱，表明TMOS通过水解在CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "表面形成了SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "壳层" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "xref", "data": { "text": "21", "type": "bibr", "rid": "R21", "data": [ { "name": "text", "data": "21" } ] } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "。" } ] }, { "name": "fig", "data": { "id": "F2", "caption": [ { "lang": "zh", "label": [ { "name": "text", "data": "图2" } ], "title": [ { "name": "text", "data": "CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "和CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "的XRD图（a）和FT-IR光谱（b）" } ] }, { "lang": "en", "label": [ { "name": "text", "data": "Fig.2" } ], "title": [ { "name": "text", "data": "XRD patterns（a） and FT-IR spectra（b） of CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": " and CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] } ] } ], "subcaption": [], "note": [], "graphics": [ { "print": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865238&type=", "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865246&type=", "big": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865243&type=", "width": "61.53997803", "height": "99.41516113", "fontsize": "" } ] } }, { "name": "p", "data": [ { "name": "xref", "data": { "text": "图3", "type": "fig", "rid": "F3", "data": [ { "name": "text", "data": "图3" } ] } }, { "name": "text", "data": "（a）~（b）为CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "的TEM图，由图可知，CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "的大小均一，平均尺寸约为25 nm，形貌呈立方状，分散性良好，没有团聚。" }, { "name": "xref", "data": { "text": "图3", "type": "fig", "rid": "F3", "data": [ { "name": "text", "data": "图3" } ] } }, { "name": "text", "data": "（c）~（d）为CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "的TEM图，可以明显发现CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "周围均匀包覆SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "，形成单分散的核壳结构，且SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "壳层厚度约为10 nm，这是由于APTES提供了丰富的—SiOCH" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "与—SiOH基团，能够与TMOS形成Si—O—Si共价键，使SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "紧密包覆在CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "表面" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "xref", "data": { "text": "25", "type": "bibr", "rid": "R25", "data": [ { "name": "text", "data": "25" } ] } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "。" } ] }, { "name": "fig", "data": { "id": "F3", "caption": [ { "lang": "zh", "label": [ { "name": "text", "data": "图3" } ], "title": [ { "name": "text", "data": "CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "（（a）~（b））和CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "（（c）~（d））的TEM图" } ] }, { "lang": "en", "label": [ { "name": "text", "data": "Fig.3" } ], "title": [ { "name": "text", "data": "TEM images of CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "（（a）-（b）） and CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "（（c）-（d））" } ] } ], "subcaption": [], "note": [], "graphics": [ { "print": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865250&type=", "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865256&type=", "big": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865253&type=", "width": "77.12155151", "height": "68.16558838", "fontsize": "" } ] } }, { "name": "p", "data": [ { "name": "text", "data": "为了进一步证明CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "核壳结构的形成，对样品进行了EDX元素分布表征。" }, { "name": "xref", "data": { "text": "图4", "type": "fig", "rid": "F4", "data": [ { "name": "text", "data": "图4" } ] } }, { "name": "text", "data": "（a）~（f）为CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "的SEM图及对应的mapping图，可以看到，CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "中存在有Si、Cs、Pb、Br四种元素，其中Si元素来自于SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "，而Cs、Pb、Br三种元素则来自于CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "，说明成功制备了CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "核壳结构纳米颗粒。" }, { "name": "xref", "data": { "text": "图4", "type": "fig", "rid": "F4", "data": [ { "name": "text", "data": "图4" } ] } }, { "name": "text", "data": "（g）为CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "的EDX能谱，从图中可知，Si、Cs、Pb、Br原子计量比分别为46.53%、8.92%、12.87%和 31.68%，其中Cs、Pb、Br元素的化学计量比约为1∶1∶3，进一步表明成功制备了CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "核壳结构纳米颗粒。" } ] }, { "name": "fig", "data": { "id": "F4", "caption": [ { "lang": "zh", "label": [ { "name": "text", "data": "图4" } ], "title": [ { "name": "text", "data": "CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "的SEM图（a）、元素分布图（（b）~（f））和EDX能谱（g）。" } ] }, { "lang": "en", "label": [ { "name": "text", "data": "Fig.4" } ], "title": [ { "name": "text", "data": "SEM image（a）， elemental mapping images（（b）-（f））， and EDX spectrum（g） of CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "." } ] } ], "subcaption": [], "note": [], "graphics": [ { "print": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865258&type=", "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865265&type=", "big": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865262&type=", "width": "77.16412354", "height": "116.45103455", "fontsize": "" } ] } } ] }, { "name": "sec", "data": [ { "name": "sectitle", "data": { "title": [ { "name": "text", "data": "3.2　光学性能表征" } ], "level": "2", "id": "s3b" } }, { "name": "p", "data": [ { "name": "xref", "data": { "text": "图5", "type": "fig", "rid": "F5", "data": [ { "name": "text", "data": "图5" } ] } }, { "name": "text", "data": "（a）为CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "、CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "的吸收光谱和发射光谱（PL），由图可知，二者均在507 nm处产生带边吸收；同时，在365 nm激发下，均在515 nm处产生强发射峰，且二者半峰宽均为20 nm，说明SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "壳层没有改变CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "的结构组成和晶格分布" }, { "name": "sup", "data": [ { "name": "text", "data": " [" }, { "name": "xref", "data": { "text": "26", "type": "bibr", "rid": "R26", "data": [ { "name": "text", "data": "26" } ] } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "。为了探究SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "包覆对CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "激子复合过程的影响，测量了CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "和CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@ SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "在365 nm激发下，监测515 nm处发射的荧光衰减曲线，如" }, { "name": "xref", "data": { "text": "图5", "type": "fig", "rid": "F5", "data": [ { "name": "text", "data": "图5" } ] } }, { "name": "text", "data": "（b）所示，采用双指数函数对荧光衰减曲线进行拟合" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "xref", "data": { "text": "27", "type": "bibr", "rid": "R27", "data": [ { "name": "text", "data": "27" } ] } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": ":" } ] }, { "name": "fig", "data": { "id": "F5", "caption": [ { "lang": "zh", "label": [ { "name": "text", "data": "图5" } ], "title": [ { "name": "text", "data": "CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "和CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "的吸收光谱、发射光谱（a）和荧光衰减曲线（b）。" } ] }, { "lang": "en", "label": [ { "name": "text", "data": "Fig.5" } ], "title": [ { "name": "text", "data": "Absorption spectra， photoluminescence spectra（a） and decay curves（b） of CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": " and CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "." } ] } ], "subcaption": [], "note": [], "graphics": [ { "print": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865269&type=", "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865274&type=", "big": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865272&type=", "width": "137.18041992", "height": "54.29917908", "fontsize": "" } ] } }, { "name": "dispformula", "data": { "label": [ { "name": "text", "data": "（1）" } ], "data": [ { "name": "math", "data": { "math": "

A (t) = A_{1} e (\frac{- t}{τ_{1}}) + A_{2} e (\frac{- t}{τ_{2}})

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τ_{a v g} = \frac{A_{1} τ_{1}^{2} + A_{2} τ_{2}^{2}}{A_{1} τ_{1} + A_{2} τ_{2}}

", "graphicsData": { "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865289&type=", "big": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865282&type=", "width": "31.91933441", "height": "8.29733276", "fontsize": "" } } }, { "name": "text", "data": "，" } ], "id": "DF2" } }, { "name": "p", "data": [ { "name": "text", "data": "经计算，CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "的平均荧光寿命" }, { "name": "italic", "data": [ { "name": "text", "data": "τ" } ] }, { "name": "sub", "data": [ { "name": "text", "data": "avg" } ] }, { "name": "text", "data": "为16.5 ns，而CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "的平均荧光寿命12 ns，说明SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "包覆之后的荧光寿命更长。其原因可能是SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "壳层降低了CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "的表面缺陷密度，从而抑制了缺陷辅助的非辐射复合" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "xref", "data": { "text": "29", "type": "bibr", "rid": "R29", "data": [ { "name": "text", "data": "29" } ] } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "。" } ] }, { "name": "p", "data": [ { "name": "text", "data": "此外，我们还研究了SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "包覆对CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "荧光量子产率（PLQY）的影响。对待测样品CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "和CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "溶液进行稀释处理，稀释后的溶液浓度均为10 μg/mL；同时，以同体积的正己烷溶液作为参照，测试样品的PLQY光谱。" }, { "name": "xref", "data": { "text": "图6", "type": "fig", "rid": "F6", "data": [ { "name": "text", "data": "图6" } ] } }, { "name": "text", "data": "（a）、（b）分别为SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "包覆前后CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "的PLQY光谱，经计算可得CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "和CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "的PLQY值分别为80%和78%。由此可知，CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "的PLQY值略低于CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "，这种PLQY的轻微损失可能是由于SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "壳层引起的重吸收和多重散射效应导致的" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "blockXref", "data": { "data": [ { "name": "xref", "data": { "text": "30", "type": "bibr", "rid": "R30", "data": [ { "name": "text", "data": "30" } ] } }, { "name": "text", "data": "-" }, { "name": "xref", "data": { "text": "32", "type": "bibr", "rid": "R32", "data": [ { "name": "text", "data": "32" } ] } } ], "rid": [ "R30", "R31", "R32" ], "text": "30-32", "type": "bibr" } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "。" } ] }, { "name": "fig", "data": { "id": "F6", "caption": [ { "lang": "zh", "label": [ { "name": "text", "data": "图6" } ], "title": [ { "name": "text", "data": "CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "（a）和CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "（b）的PLQY光谱" } ] }, { "lang": "en", "label": [ { "name": "text", "data": "Fig.6" } ], "title": [ { "name": "text", "data": "PLQY spectra of CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "（a） and CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "（b）" } ] } ], "subcaption": [], "note": [], "graphics": [ { "print": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865294&type=", "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865298&type=", "big": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865295&type=", "width": "130.21148682", "height": "56.98403931", "fontsize": "" } ] } } ] }, { "name": "sec", "data": [ { "name": "sectitle", "data": { "title": [ { "name": "text", "data": "3.3　稳定性测试" } ], "level": "2", "id": "s3c" } }, { "name": "p", "data": [ { "name": "text", "data": "稳定性是CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "纳米晶在实际应用中的关键指标。为了研究SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "包覆对CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "稳定性的影响，将装有样品的玻璃瓶在真空下干燥后，称量样品与玻璃瓶的总质量；减去空白玻璃瓶的质量，计算出样品的浓度。将相同浓度（50 μg/mL）的CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "和CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "溶液旋涂成薄膜，研究CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "和CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "的热稳定性。类似地，将CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "和CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "以体积比1∶1与去离子水混合，研究CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "和CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "的水稳定性。" } ] }, { "name": "p", "data": [ { "name": "xref", "data": { "text": "图7", "type": "fig", "rid": "F7", "data": [ { "name": "text", "data": "图7" } ] } }, { "name": "text", "data": "（a）~（b）为CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "和CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "在不同加热（60 ℃）时间下的PL光谱，如" }, { "name": "xref", "data": { "text": "图7", "type": "fig", "rid": "F7", "data": [ { "name": "text", "data": "图7" } ] } }, { "name": "text", "data": "（c）所示，CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "的发光强度随着加热时间的延长迅速下降，且发射峰出现轻微红移。这是由于在加热过程中，CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "的表面配体脱落，导致其聚集成大颗粒，从而引起CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "荧光猝灭和发射峰红移" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "xref", "data": { "text": "33", "type": "bibr", "rid": "R33", "data": [ { "name": "text", "data": "33" } ] } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "。而CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@ SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "仍保持初始发光强度的81%，这归因于SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "壳层能够有效阻止配体的脱落" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "xref", "data": { "text": "34", "type": "bibr", "rid": "R34", "data": [ { "name": "text", "data": "34" } ] } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "，使CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "具有良好的热稳定性。" } ] }, { "name": "fig", "data": { "id": "F7", "caption": [ { "lang": "zh", "label": [ { "name": "text", "data": "图7" } ], "title": [ { "name": "text", "data": "CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "和CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "的PL光谱及归一化PL强度对比。（a）~（c）不同加热时间；（d）~（f）不同浸水时间。" } ] }, { "lang": "en", "label": [ { "name": "text", "data": "Fig.7" } ], "title": [ { "name": "text", "data": "PL spectra and normalized PL intensity of CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": " and CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": ". （a）-（c）Under different time at 60 ℃. （d）-（f）PL spectra under different treated time in water." } ] } ], "subcaption": [], "note": [], "graphics": [ { "print": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865303&type=", "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865313&type=", "big": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865305&type=", "width": "154.63868713", "height": "82.11302185", "fontsize": "" } ] } }, { "name": "p", "data": [ { "name": "xref", "data": { "text": "图7", "type": "fig", "rid": "F7", "data": [ { "name": "text", "data": "图7" } ] } }, { "name": "text", "data": "（d）~（e）为CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "和CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "在不同浸水时间下的PL光谱，可以看出，水分子明显引起了CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "发光强度猝灭，当CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "表面包覆SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "时，能够有效缓解CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "发光强度降低。如" }, { "name": "xref", "data": { "text": "图7", "type": "fig", "rid": "F7", "data": [ { "name": "text", "data": "图7" } ] } }, { "name": "text", "data": "（f）所示，当CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "浸水时间为 60 min时，CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "发光强度几乎猝灭为0，而CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3 " } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "在浸水100 min后仍保持初始发光强度的75.2%。这是由于SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "层隔绝了CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "与水分子的接触，避免水分子引起CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "表面发生降解" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "xref", "data": { "text": "35", "type": "bibr", "rid": "R35", "data": [ { "name": "text", "data": "35" } ] } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "。" } ] } ] }, { "name": "sec", "data": [ { "name": "sectitle", "data": { "title": [ { "name": "text", "data": "3.4　柔性显示与防伪应用" } ], "level": "2", "id": "s3d" } }, { "name": "p", "data": [ { "name": "text", "data": "为了探索CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "在柔性显示的应用潜力，制备了CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "-PDMS复合柔性薄膜。" }, { "name": "xref", "data": { "text": "图8", "type": "fig", "rid": "F8", "data": [ { "name": "text", "data": "图8" } ] } }, { "name": "text", "data": "（a）为CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "和CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "-PDMS复合薄膜的PL光谱，由图可知，在365 nm激发下，该复合薄膜的发射峰在522 nm处，半峰宽约为20 nm，与CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "溶液相比，其发射峰出现了7 nm的红移，而半峰宽几乎保持不变。发射峰红移可能归因于复合薄膜制备过程中CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "发生了团聚现象，而半峰宽没有改变则说明CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "的结构没有被破坏" }, { "name": "sup", "data": [ { "name": "text", "data": "[" }, { "name": "xref", "data": { "text": "36", "type": "bibr", "rid": "R36", "data": [ { "name": "text", "data": "36" } ] } }, { "name": "text", "data": "]" } ] }, { "name": "text", "data": "。" }, { "name": "xref", "data": { "text": "图8", "type": "fig", "rid": "F8", "data": [ { "name": "text", "data": "图8" } ] } }, { "name": "text", "data": "（b）为复合薄膜的色坐标图，复合薄膜对应CIE坐标为（0.122 9, 0.788 0），位于绿光区域，表明CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@ SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "-PDMS复合薄膜具有良好的显色性能。我们还对CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@ SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "-PDMS复合薄膜进行了可拉伸性和柔性测试，如" }, { "name": "xref", "data": { "text": "图8", "type": "fig", "rid": "F8", "data": [ { "name": "text", "data": "图8" } ] } }, { "name": "text", "data": "（c）所示，当复合薄膜伸长率从0%变化到50%时，没有发生开裂，同时发光强度也没有发生明显变化。" }, { "name": "xref", "data": { "text": "图8", "type": "fig", "rid": "F8", "data": [ { "name": "text", "data": "图8" } ] } }, { "name": "text", "data": "（d）展示了CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "-PDMS复合薄膜从0°～180°任意弯曲角度，且在弯曲过程中没有发生CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "粉末的剥离，发光强度也无明显变化，说明所制备的CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "-PDMS复合薄膜具有良好的可拉伸性和柔韧性。" } ] }, { "name": "fig", "data": { "id": "F8", "caption": [ { "lang": "zh", "label": [ { "name": "text", "data": "图8" } ], "title": [ { "name": "text", "data": "（a）CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "和CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "-PDMS复合薄膜的PL光谱；（b）CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "-PDMS复合薄膜的CIE坐标图；CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "-PDMS复合薄膜在不同拉伸程度下（c）和不同弯曲程度下（d）的电子照片及相应的PL强度变化。" } ] }, { "lang": "en", "label": [ { "name": "text", "data": "Fig.8" } ], "title": [ { "name": "text", "data": "（a）PL spectra of CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": " and CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "-PDMS film. （b）CIE coordinates of of CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "-PDMS film. The photographs and the corresponding PL intensities changes of CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "-PDMS film under different elongation ratios（c） and different bending degrees（d）." } ] } ], "subcaption": [], "note": [], "graphics": [ { "print": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865318&type=", "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865325&type=", "big": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865323&type=", "width": "115.77264404", "height": "89.76877594", "fontsize": "" } ] } }, { "name": "p", "data": [ { "name": "text", "data": "传统的荧光防伪材料的荧光量子效率较低，限制了其在防伪领域的广泛应用。相比于传统荧光防伪材料，CsPb" }, { "name": "italic", "data": [ { "name": "text", "data": "X" } ] }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "纳米晶具有荧光量子产率高、制备工艺简单以及成本低等优点。为了证明CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@ SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "在荧光防伪领域具有应用前景，我们将CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "-PDMS复合薄膜与商用绿色长余辉材料SrAl" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "O" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": ",Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "相结合，设计了数字加密图案。如" }, { "name": "xref", "data": { "text": "图9", "type": "fig", "rid": "F9", "data": [ { "name": "text", "data": "图9" } ] } }, { "name": "text", "data": "（a）所示，“8888”数字图案中“2022”部分用绿色长余辉材料SrAl" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "O" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": ",Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "和CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "混合填充，其余部分用CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "填充。在365 nm紫外光下，数字图案呈现绿色的“8888”；当关掉紫外光源后，数字图案则变为绿色的“2022”。这是因为CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "与SrAl" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "O" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": ",Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "在紫外光激发下均产生绿光，关掉紫外光源后，长余辉材料SrAl" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "O" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": ",Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "仍继续发射绿光。" } ] }, { "name": "fig", "data": { "id": "F9", "caption": [ { "lang": "zh", "label": [ { "name": "text", "data": "图9" } ], "title": [ { "name": "text", "data": "CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "的防伪应用。（a）数字加密示例；（b）防伪图案示例。" } ] }, { "lang": "en", "label": [ { "name": "text", "data": "Fig.9" } ], "title": [ { "name": "text", "data": "Anti-counterfeiting applications of CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": ". （a）Example of digital encryption. （b）Example of security pattern." } ] } ], "subcaption": [], "note": [], "graphics": [ { "print": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865329&type=", "small": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865334&type=", "big": "http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=35865332&type=", "width": "107.07006836", "height": "56.26829529", "fontsize": "" } ] } }, { "name": "p", "data": [ { "name": "text", "data": "类似地，我们还利用CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "设计了防伪图案，如" }, { "name": "xref", "data": { "text": "图9", "type": "fig", "rid": "F9", "data": [ { "name": "text", "data": "图9" } ] } }, { "name": "text", "data": "（b）所示，兔子图案的耳朵部分用CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "填充，其余部分用绿色长余辉材料SrAl" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "O" }, { "name": "sub", "data": [ { "name": "text", "data": "4" } ] }, { "name": "text", "data": "∶Eu" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": ",Dy" }, { "name": "sup", "data": [ { "name": "text", "data": "3+" } ] }, { "name": "text", "data": "和CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "混合填充。在365 nm紫外光激发下，呈现完整的绿色兔子图案；当关掉紫外光源后，兔子图案的耳朵则“消失”。上述实验结果表明，CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "与绿色长余辉材料相结合，能够实现数字加密和图案防伪，具有良好的荧光防伪应用前景。" } ] } ] } ] }, { "name": "sec", "data": [ { "name": "sectitle", "data": { "title": [ { "name": "text", "data": "4　结　　论" } ], "level": "1", "id": "s4" } }, { "name": "p", "data": [ { "name": "text", "data": "本文采用热注射法合成了APTES修饰的CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "纳米晶，在此基础上，以TMOS为硅源，通过控制TMOS的水解速率，制备了CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": " 核壳结构纳米颗粒。通过XRD、FT-IR、TEM、吸收光谱和荧光光谱等表征方法证明成功制备了CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "纳米颗粒。CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "最强发射峰位于515 nm 处，半峰宽约为20 nm，相比于CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "，其半峰宽及最强发射波长几乎没发生改变。同时，SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "包覆显著提高了CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "的水热稳定性，CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "在60 ℃连续加热30 min后，发光强度能维持初始强度的81%；浸水100 min后，其发光强度仍能保持初始强度的75.2%。此外，我们制备了CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "与PDMS的复合薄膜，该复合薄膜不仅具有良好的可拉伸性、柔韧性和发光性能，与商用绿色长余辉材料相结合，还能够实现数字加密和图案防伪应用。该研究结果在柔性显示和荧光防伪领域具有广泛的应用前景。" } ] }, { "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： " }, { "name": "extlink", "data": { "text": [ { "name": "text", "data": 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" }, { "name": "text", "data": "（in Chinese）" } ], "title": "Study on White LED Based on All-inorganic Perovskite Quantum Dots and Composite Materials" } ] } ] }, "response": [], "contributions": [], "acknowledgements": [], "conflict": [], "supportedby": [], "articlemeta": { "doi": "10.37188/CJL.20220156", "clc": [ [ { "name": "text", "data": "O482.31" } ] ], "dc": [ { "name": "text", "data": "A" } ], "publisherid": "1000-7032（2022）08-1309-10", "citeme": [ { "data": [ { "name": "text", "data": "丁梦宇,郑标,魏维平等.单分散CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": "纳米颗粒制备及其在柔性显示与荧光防伪中的应用[J].发光学报,2022,43(08):1309-1318." } ], "text": "丁梦宇,郑标,魏维平等.单分散CsPbBr3@SiO2纳米颗粒制备及其在柔性显示与荧光防伪中的应用[J].发光学报,2022,43(08):1309-1318." }, { "data": [ { "name": "text", "data": "DING Meng-yu,ZHENG Biao,WEI Wei-ping,et al.Synthesis of Monodisperse CsPbBr" }, { "name": "sub", "data": [ { "name": "text", "data": "3" } ] }, { "name": "text", "data": "@SiO" }, { "name": "sub", "data": [ { "name": "text", "data": "2" } ] }, { "name": "text", "data": " Nanoparticles for Flexible Display and Anti-counterfeiting[J].Chinese Journal of Luminescence,2022,43(08):1309-1318." } ], "text": "DING Meng-yu,ZHENG Biao,WEI Wei-ping,et al.Synthesis of Monodisperse CsPbBr3@SiO2 Nanoparticles for Flexible Display and Anti-counterfeiting[J].Chinese Journal of Luminescence,2022,43(08):1309-1318." } ], "fundinggroup": [ { "lang": "zh", "text": [ { "name": "text", "data": "国家自然科学基金（12004153，12174172）；福建省自然科学基金（2019J05110，2022J011118）；福州市科技计划（2021⁃SG⁃271）；福州海洋研究院项目（2021F06）资助" } ] }, { "lang": "en", "text": [ { "name": "text", "data": "Supported by National Natural Science Foundation of China（12004153，12174172）； Natural Science Foundation of Fujian（2019J05110，2022J011118））； Science and Technology Program of Fuzhou City（2021⁃SG⁃271）； Fuzhou Institute of Oceanography Project（2021F06" } ] } ], "history": { "received": "2022-05-03", "revised": "2022-05-23", "ppub": "2022-08-05", "opub": "2022-10-19" } }, "appendix": [], "type": "research-article", "ethics": [], "supplementary": [], "journalTitle": "发光学报", "issue": "8", "volume": "43", "originalSource": [] }

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