Er3+/Yb3+共掺KLaF4纳米晶的制备和上转换发光

赖文彬; 周海芳; 程树英; 赖云锋

doi:10.3788/fgxb20133410.1259

您当前的位置：

首页 >

文章列表页 >

Er³⁺/Yb³⁺共掺KLaF₄纳米晶的制备和上转换发光

材料合成及性能 | 更新时间：2020-08-12

- Er³⁺/Yb³⁺共掺KLaF₄纳米晶的制备和上转换发光
- Preparation and Upconversion Luminescence of Er³⁺/Yb³⁺ Codoped KLaF₄ Nanocrystals
- 发光学报 2013年34卷第10期页码：1259-1263
- 作者机构：
  
  福州大学物理与信息工程学院微纳器件与太阳能电池研究所, 福建福州 350108
- 作者简介：
- 基金信息：
  
  国家自然科学基金(61006003)();福建省自然科学基金(2009J05146)();教育部留学回国人员科研启动基金(LXKQ201104)();中科院光电材料化学
- DOI：10.3788/fgxb20133410.1259
  中图分类号： O482.31
- 收稿日期：2013-06-09，
  
  修回日期：2013-07-10，
  
  纸质出版日期：2013-10-10
- 稿件说明：
移动端阅览
赖文彬, 周海芳, 程树英, 赖云锋. Er3+/Yb3+共掺KLaF4纳米晶的制备和上转换发光[J]. 发光学报, 2013,34(10): 1259-1263

LAI Wen-bin, ZHOU Hai-fang, CHENG Shu-ying, LAI Yun-feng. Preparation and Upconversion Luminescence of Er3+/Yb3+ Codoped KLaF4 Nanocrystals[J]. Chinese Journal of Luminescence, 2013,34(10): 1259-1263
赖文彬, 周海芳, 程树英, 赖云锋. Er3+/Yb3+共掺KLaF4纳米晶的制备和上转换发光[J]. 发光学报, 2013,34(10): 1259-1263 DOI： 10.3788/fgxb20133410.1259.

LAI Wen-bin, ZHOU Hai-fang, CHENG Shu-ying, LAI Yun-feng. Preparation and Upconversion Luminescence of Er3+/Yb3+ Codoped KLaF4 Nanocrystals[J]. Chinese Journal of Luminescence, 2013,34(10): 1259-1263 DOI： 10.3788/fgxb20133410.1259.

摘要

用水热法成功制备了Er

/Yb

共掺不同浓度比的KLaF

纳米晶

并在300℃氩气气氛下退火。利用X射线衍射谱(XRD)、透射电子显微镜(TEM)对样品的晶体结构和形貌进行了表征。测量了样品漫反射谱、980 nm 激发下的上转换发射光谱和

11/2

能级的荧光寿命。研究结果表明:制备得到的样品为六方相的纳米棒

退火后纳米棒平均直径为28 nm

长为130 nm;在Er

浓度一定的情况下

提高Yb

掺杂量有利于增强973 nm 附近光的吸收;980 nm 的近红外光可上转换为较强的绿光和红光

且红绿光强度和

11/2

能级的平均荧光寿命均会随着Yb

掺杂浓度的增加而下降。

Abstract

KLaF

nanocrystals (NCs) co-doped with 2%Er

(fixed) and varied Yb

doping mole fractions (10%

14%

18%) were synthesized by hydrothermal method. The samples were annealed in argon at 300℃ for 1.5 h.The crystal structure and morphology of the samples were confirmed by X-ray diffraction (XRD) and transmission electron microscopy (TEM)

respectively. The optical properties of the samples were evaluated by diffuse reflectance spectra and up-conversion photoluminescence spectroscopy with the average fluorescent lifetimes of

11/2

level under laser excitation at 980 nm. The results show hexagonal KLaF

: Er

NCs are successfully obtained

which have a longitude of about 130 nm and a diameter of 28 nm for the annealed sample. The diffuse reflection spectra indicate that the absorbtion at around 973 nm is enhanced with the increase of Yb

mole fraction while Er

mole fraction is fixed. The near-infrared light at 980 nm can be up-converted to green and red light. Furthermore

both the intensities of the red and green light and the average fluorescence lifetimes for

11/2

level were decreased with the increase of Yb

ion concentration in KLaF

: Er

NCs. In addition

the effect of Yb

doping concertration on the intensity of up-conversion luminescence and the average fluorescence lifetimes for

11/2

level were briefly clarified.

关键词

Keywords

references

Shen J, Sun L D, Yan C H. Luminescent rare earth nanomaterials for bioprobe applications [J]. Dalton Trans., 2008(42):5687-5697.[2] Xie G X, Lin J M, Wu J H, et al. Application of upconversion luminescence in dye-sensitized solar cells [J]. Chin. Sci. Bull.(科学通报), 2011, 56(1):96-101 (in English).[3] Scheps R. Upconversion laser processes [J]. Prog. Quant. Electr., 1996, 20(4):271-358.[4] Kim K J, Jouini A, Yoshikawa A, et al. Growth and optical properties of Pr,Yb-codoped KY3F10 fluoride single crystals for up-conversion visible luminescence [J]. J. Cryst. Growth, 2007, 299(1):171-177.[5] Passuello T, Piccinelli F, Pedroni M, et al. White light upconversion of nanocrystalline Er/Tm/Yb doped tetragonal Gd4O3F6 [J]. Opt. Mater., 2011, 33(4):643-646.[6] Tsuboi T, Murayama H. Energy-transfer upconversion of rare earth ions in ionic crystals: Case of Tm3+/Ho3+-codoped LiYF4 crystals [J]. J. Alloys Compd., 2006, 408:680-686.[7] Schfer H, Ptacek P, Kmpe K, et al. Lanthanide-doped NaYF4 nanocrystals in aqueous solution displaying strong up-conversion emission [J]. Chem. Mater., 2007, 19:1396-1400.[8] Groen C P, Oskam A. Theoretical study of mixed MLaX4(M=Na, K, Cs; X=F, Cl, Br, I) rare earth/alkali metal halide complexes [J]. Inorg. Chem., 2003, 42(3):851-858.[9] Tyagi N, Reddy A A, Nagarajan R. KLaF4:Er an efficient upconversion phosphor [J]. Opt.Mater., 2010, 33(1):42-47.[10] Ahmad S, Prakash G V, Nagarajan R. Hexagonally ordered KLaF4 host: Phase-controlled synthesis and luminescence studies [J]. Inorg. Chem., 2012, 51(23):12748-12754.[11] Liu R, Tu D, Liu Y, et al. Controlled synthesis and optical spectroscopy of anthanide-doped KLaF4 nanocrystals [J]. Nanoscale, 2012, 4(15):4485-4491.[12] Singh N S, Ningthoujam R S, Luwang M N, et al. Luminescence, lifetime and quantum yield studies of YVO4:Ln3+ (Ln3+=Dy3+, Eu3+)nanoparticles: Concentration and annealing effects [J]. Chem. Phys. Lett., 2009, 480(4):237-242.[13] Jia R K, Yang S, Li C X, et al. Liquid preparation of soluble NaYF4:Er3+,Yb3+ nanocrystals [J]. Acta Chim. Sinica (化学学报), 2008, 66(21):2439-2444 (in Chinese).[14] Luo Z D, Huang Y D. Physical Spectroscopy of Solid-State Laser Material [M]. Fuzhou: Fujian Science and Technology Publishing House, 2003:152-155 (in Chinese).

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

KYb₂F₇∶2% Er³⁺荧光材料的制备、发光机制及温度传感性能

激光诱导聚二甲基硅氧烷制备石墨烯量子点

碱金属共掺MgSc₂O₄:Er³⁺/Yb³⁺纳米晶的上转换发光性能

绿色方法合成纳米碳点及对Fe³⁺的特异性荧光检测

NaGd(WO₄)₂:Yb³⁺,Ho³⁺,Cr³⁺微米晶的上转换发光与温度特性