Synthesis and Characterization of HgTe/CdS/ZnS Multi-shell Quantum Dots

HU Jun; QIN Rui-fei; JIN Chong-jun

doi:10.3788/fgxb20153603.0272

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Synthesis and Characterization of HgTe/CdS/ZnS Multi-shell Quantum Dots

更新时间：2020-08-12

- Synthesis and Characterization of HgTe/CdS/ZnS Multi-shell Quantum Dots
- Chinese Journal of Luminescence Vol. 36, Issue 3, Pages: 272-278(2015)
- 作者机构：
  
  中山大学物理科学与工程技术学院,广东广州,510275
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20153603.0272
  CLC： O842.31
- Received：01 November 2014，
  
  Revised：05 January 2015，
  
  Published Online：12 January 2015，
  
  Published：03 March 2015
- 稿件说明：
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胡军, 秦瑞飞, 金崇君. HgTe/CdS/ZnS多壳层量子点的制备与表征[J]. 发光学报, 2015,36(3): 272-278

HU Jun, QIN Rui-fei, JIN Chong-jun. Synthesis and Characterization of HgTe/CdS/ZnS Multi-shell Quantum Dots[J]. Chinese Journal of Luminescence, 2015,36(3): 272-278
胡军, 秦瑞飞, 金崇君. HgTe/CdS/ZnS多壳层量子点的制备与表征[J]. 发光学报, 2015,36(3): 272-278 DOI： 10.3788/fgxb20153603.0272.

HU Jun, QIN Rui-fei, JIN Chong-jun. Synthesis and Characterization of HgTe/CdS/ZnS Multi-shell Quantum Dots[J]. Chinese Journal of Luminescence, 2015,36(3): 272-278 DOI： 10.3788/fgxb20153603.0272.

摘要

采用一种简单的方法合成HgTe/CdS/ZnS多壳层量子点。首先

以1-硫代甘油为稳定剂

在水相溶液中制备出HgTe核量子点;然后

采用外延生长法依次在HgTe核量子点表面包覆CdS和ZnS壳层

合成出最终具有稳定近红外发光的HgTe/CdS/ZnS多壳层量子点。该合成方法仅需3个步骤

具有操作简单、成本低廉的优点。实验结果显示

当反应温度为90 ℃、反应溶液pH为11.0、反应加热回流时间为4 min时

HgTe/CdS/ZnS多壳层量子点具有最高荧光量子产率36%。

Abstract

A simple method for HgTe/CdS/ZnS multi-shell quantum dots (QDs) synthesizing was developed. Firstly

HgTe core QDs were synthesized in aqueous solution with 1-thioglycerol as the stabilizer. Then

CdS and ZnS shells were grown on the surface of HgTe core by epitaxial growth method. The resultant HgTe/CdS/ZnS multi-shell QDs have stable near-infrared light-emitting property. This synthetic method contains only three steps with the advantages of simple operation and low cost. The experimental results indicate that HgTe/CdS/ZnS multi-shell QDs can reach the highest fluorescence quantum yield of 36% as the reaction solution (pH=11.0) is heated reflux for 4 min at 90 ℃.

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references

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