Synthesis and Optical Properties of CdTe:Eu Quantum Dots

XU Hong-yuan; ZHANG Jian-hua; LI Fu-shan

doi:10.3788/fgxb20163703.0305

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Synthesis and Optical Properties of CdTe:Eu Quantum Dots

更新时间：2020-08-12

- Synthesis and Optical Properties of CdTe:Eu Quantum Dots
- Chinese Journal of Luminescence Vol. 37, Issue 3, Pages: 305-309(2016)
- 作者机构：
  
  福州大学物理与信息工程学院,福建福州,350002
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20163703.0305
  CLC： O613.5;O482.31
- Received：05 November 2015，
  
  Revised：15 December 2015，
  
  Published：05 March 2016
- 稿件说明：
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许鸿源, 张剑华, 李福山. CdTe:Eu量子点的合成及其光学性能研究[J]. 发光学报, 2016,37(3): 305-309

XU Hong-yuan, ZHANG Jian-hua, LI Fu-shan. Synthesis and Optical Properties of CdTe:Eu Quantum Dots[J]. Chinese Journal of Luminescence, 2016,37(3): 305-309
许鸿源, 张剑华, 李福山. CdTe:Eu量子点的合成及其光学性能研究[J]. 发光学报, 2016,37(3): 305-309 DOI： 10.3788/fgxb20163703.0305.

XU Hong-yuan, ZHANG Jian-hua, LI Fu-shan. Synthesis and Optical Properties of CdTe:Eu Quantum Dots[J]. Chinese Journal of Luminescence, 2016,37(3): 305-309 DOI： 10.3788/fgxb20163703.0305.

摘要

采用1-十八烯作为高温反应溶剂

利用氯化铕和磷酸三丁酯制备铕前驱体。分别采用正三辛基膦和碲粉制备的碲前驱体

以及油胺和二水乙酸镉制备的镉前驱体

在200 ℃合成Eu掺杂CdTe量子点。实验发现随着反应溶液中Eu的含量上升

CdTe量子点的荧光峰发生显著红移

但Eu的含量过高则会导致量子点的荧光强度下降。

Abstract

Using 1-octadecene as high-temperature reaction solvent

Eu-doped CdTe quantum dots were synthesized. The europium precursor was prepared by dissolving europium chloride into tributyl phosphate. Cadmium precursor solution was prepared by dissolving cadmium acetate into oleylamine

and Te precursor solution was prepared by dissolving tellurium powder into trioctylphosphine. CdTe and CdTe:Eu quantum dot were obtained at 200 ℃. The experiment results indicate that the fluorescence peaks of the quantum dots show obvious red shift with the increasing of europium content

but extra europium will lead to the decrease of fluorescence intensity.

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references

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