Effects of Yb3+ in Shell on Temperature Dependent Upconversion Luminescence of NaYF4:Yb3+,Er3+@NaYF4:x%Yb3+ Core/ Shell Nanostructures

XIE Xuan; WU Fei; LI Qi-qing; XUE Bin; KONG Xiang-gui

doi:10.3788/fgxb20153612.1390

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Effects of Yb³⁺ in Shell on Temperature Dependent Upconversion Luminescence of NaYF₄:Yb³⁺,Er³⁺@NaYF₄:x%Yb³⁺ Core/ Shell Nanostructures

更新时间：2020-08-12

- Effects of Yb³⁺ in Shell on Temperature Dependent Upconversion Luminescence of NaYF₄:Yb³⁺,Er³⁺@NaYF₄:x%Yb³⁺ Core/ Shell Nanostructures
- Chinese Journal of Luminescence Vol. 36, Issue 12, Pages: 1390-1395(2015)
- 作者机构：
  
  1. 中国科学院大学, 北京 100049
  2. 发光学及应用国家重点实验室中国科学院长春光学精密机械与物理研究所, 吉林长春 130033
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20153612.1390
  CLC： O482.31
- Received：12 August 2015，
  
  Revised：13 September 2015，
  
  Published：10 December 2015
- 稿件说明：
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谢轩, 吴飞, 李齐清等. 核壳纳米结构壳中Yb离子对稀土上转换发光温度特性的影响[J]. 发光学报, 2015,36(12): 1390-1395

XIE Xuan, WU Fei, LI Qi-qing etc. Effects of Yb3+ in Shell on Temperature Dependent Upconversion Luminescence of NaYF4:Yb3+,Er3+@NaYF4:x%Yb3+ Core/ Shell Nanostructures[J]. Chinese Journal of Luminescence, 2015,36(12): 1390-1395
谢轩, 吴飞, 李齐清等. 核壳纳米结构壳中Yb离子对稀土上转换发光温度特性的影响[J]. 发光学报, 2015,36(12): 1390-1395 DOI： 10.3788/fgxb20153612.1390.

XIE Xuan, WU Fei, LI Qi-qing etc. Effects of Yb3+ in Shell on Temperature Dependent Upconversion Luminescence of NaYF4:Yb3+,Er3+@NaYF4:x%Yb3+ Core/ Shell Nanostructures[J]. Chinese Journal of Luminescence, 2015,36(12): 1390-1395 DOI： 10.3788/fgxb20153612.1390.

摘要

采用油酸盐法分别制备出均匀的上转换发光裸核纳米粒子及其包覆具有不同Yb

浓度掺杂的NaYF

:Yb

核壳纳米结构的上转换纳米粒子。在不同温度下(90~450 K)

研究分析了在壳中掺杂不同浓度Yb

的NaYF

:Yb

@NaYF

%Yb

核壳纳米体系的上转换发光特性。结果表明:在NaYF

:Yb

上转换体系中

惰性壳中的525 nm(

11/2

15/2

)发射峰呈现出与活性壳中不一样的趋势。壳层中掺杂的Yb

通过声子对纳米粒子内部发光与表面及外界之间的相互作用起到了重要的"桥"连作用。

Abstract

Uniform NaYF

:Yb

@NaYF

%Yb

(

60) nanoparticles were synthesized through thermolysis in oleic acid and 1-octadecene. The upconversion luminescence of these core/shell nanostructures was explored at different temperatures (90-450 K). The results demonstrate that the emission at 525 nm(

11/2

15/2

) of core/inert-shell nanoparticles exhibites a different growth from that of core/active-shell nanoparticles. The upconversion emissions of Yb

-doped-active-shell nanoparticles are more easily affected by phonons than those nanoparticles coated with inert layer. Yb

ions in the shell paly an important role of bridging the iner and outer factors to influence upconversion emission.

关键词

Keywords

references

He Q, Fan J, Hu X Y, et al. Hydrothermal synthesis of NaYF4:Er3+ and its ultraviolet up-conversion light emitting property [J]. Chin. J. Lumin.(发光学报), 2012, 33(2):122-127 (in Chinese).

Song K, Du C, Zhao J W, et al. Surface modification of NaYF4:Yb3+,Er3+ luminescent upconversion nanocrystals and biological effects [J]. Chin. J. Lumin.(发光学报), 2012, 33(11):1215-1218 (in Chinese).

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Deng R R, Fei Q, Chen R F, et al. Temporal full-colour tuning through non-steady-state upconversion [J]. Nat. Nanotechnol., 2015, 10:237-242.

Chatterjee D K, Rufaihah A J, Zhang Y. Upconversion fluorescence imaging of cells and small animals using lanthanide doped nanocrystals [J]. Biomaterials, 2008, 29(7):937-943.

Wang M, Mi C C, Wang W X, et al. Immunolabeling and NIR-excited fluorescent imaging of HeLa cells by using NaYF4:Yb,Er upconversion nanoparticles [J]. ACS Nano, 2009, 3(6):1580-1586.

Ikehata T, Onodera Y, Takashi, et al. Photodynamic therapy using upconversion nanoparticles prepared by laser ablation in liquid [J]. Appl. Surf. Sci., 2015, 348(1):54-59.

Chen G Y, Qiu H L, Prasad P N, et al. Upconversion nanoparticles: Design, nanochemistry, and applications in theranostics [J]. Chem. Rev., 2014, 114(10):5161-5214.

Vetrone F, Naccache R, Mahalingam V, et al. The active-core/active- shell approach: A strategy to enhance the upconversion luminescence in lanthanide-doped nanoparticles [J]. Adv. Funct. Mater., 2009, 19(18):2924-2929.

Huang F F, Liu X Q, Li W W, et al. Energy transfer mechanism in Er3+ doped fluoride glass sensitized by Tm3+ or Ho3+ for 2.7-m emission [J]. Chin. Opt. Lett., 2014, 12(5):51601-51604.

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