Effect of Ca2+ Doping on The Upconversion Luminescence of Hexagonal NaYF4:Yb,Er Microcrystals

LI Da-guang; LIU Shi-hu; LAN Min; ZHANG Peng; ZHAO Dan; WANG Li-li

doi:10.3788/fgxb20153601.0045

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Effect of Ca²⁺ Doping on The Upconversion Luminescence of Hexagonal NaYF₄:Yb,Er Microcrystals

更新时间：2020-08-12

- Effect of Ca²⁺ Doping on The Upconversion Luminescence of Hexagonal NaYF₄:Yb,Er Microcrystals
- Chinese Journal of Luminescence Vol. 36, Issue 1, Pages: 45-49(2015)
- 作者机构：
  
  1. 吉林大学电子科学与工程学院集成光电子学国家重点联合实验室,吉林长春,130012
  2. 长春工业大学化学与生命科学学院,吉林长春,130012
  3. 长春工业大学基础科学学院,吉林长春,130012
  4. 长春工业大学材料科学高等研究院,吉林长春,130012
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20153601.0045
  CLC： O482.31
- Received：22 September 2014，
  
  Revised：17 October 2014，
  
  Published：03 January 2015
- 稿件说明：
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李大光, 刘世虎, 兰民等. Ca2+掺杂对NaYF4:Yb,Er微米晶上转换发光性能的影响[J]. 发光学报, 2015,36(1): 45-49

LI Da-guang, LIU Shi-hu, LAN Min etc. Effect of Ca2+ Doping on The Upconversion Luminescence of Hexagonal NaYF4:Yb,Er Microcrystals[J]. Chinese Journal of Luminescence, 2015,36(1): 45-49
李大光, 刘世虎, 兰民等. Ca2+掺杂对NaYF4:Yb,Er微米晶上转换发光性能的影响[J]. 发光学报, 2015,36(1): 45-49 DOI： 10.3788/fgxb20153601.0045.

LI Da-guang, LIU Shi-hu, LAN Min etc. Effect of Ca2+ Doping on The Upconversion Luminescence of Hexagonal NaYF4:Yb,Er Microcrystals[J]. Chinese Journal of Luminescence, 2015,36(1): 45-49 DOI： 10.3788/fgxb20153601.0045.

摘要

采用柠檬酸钠辅助的水热方法制备了一系列不同Ca

含量的Ca

/Yb

/Er

共掺的NaYF

微米片。利用透射电子显微镜(TEM)、X射线衍射分析(XRD)、发光光谱等测量手段对样品进行了形貌、晶相、发光性质的表征。样品在980 nm激光泵浦下

可以观察到强的上转换绿色荧光。在Ca

的摩尔分数从0增加到8%的过程中

紫外到可见的上转换发光随着Ca

浓度的增加而显著增强。这是由于Ca

的掺杂导致了晶体内部的不对称性

同时也提高了晶体的结晶性。

Abstract

Hexagonal NaYF

:Yb/Er microcrystals were prepared by a facile trisodium citrate-assisted hydrothermal method. The microparticles were characterized by TEM

X-ray diffraction (XRD)

and luminescent spectra. Intense green upconversion luminescence was observed under 980 nm excitation. By introducing Ca

dopants into the grain lattices

the upconversion luminescence intensity of NaYF

:Yb/Er microcrystal was improved significantly. The enhancement is proposed to originate from a modification of the crystal structure and an improvement in the crystallinity of NaYF

:Yb/Er microcrystals.

关键词

Keywords

references

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