ZnS:Cu-罗丹明B的荧光共振能量转移性质

翟英歌; 楚学影; 徐铭泽; 李金华; 金芳军; 王晓华

doi:10.3788/fgxb20173808.1028

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ZnS:Cu-罗丹明B的荧光共振能量转移性质

器件制备及器件物理 | 更新时间：2020-08-12

- ZnS:Cu-罗丹明B的荧光共振能量转移性质
- Properties of Fluorescence Resonance Energy Transfer of ZnS:Cu-Rhodamine B
- 发光学报 2017年38卷第8期页码：1028-1032
- 作者机构：
  
  1. 长春理工大学理学院,吉林长春,130022
  2. 长春理工大学国际教育与交流学院,吉林长春,130022
- 作者简介：
- 基金信息：
  
  国家自然科学基金（61205193）();吉林省科技发展计划（20140520107JH，20140204025GX）();长春理工大学青年科学基金（XQNJJ-201
- DOI：10.3788/fgxb20173808.1028
  中图分类号： O482.31
- 纸质出版日期：2017-8-5，
  
  收稿日期：2017-1-23，
  
  修回日期：2017-2-22，
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翟英歌, 楚学影, 徐铭泽等. ZnS:Cu-罗丹明B的荧光共振能量转移性质[J]. 发光学报, 2017,38(8): 1028-1032

ZHAI Ying-ge, CHU Xue-ying, XU Ming-ze etc. Properties of Fluorescence Resonance Energy Transfer of ZnS:Cu-Rhodamine B[J]. Chinese Journal of Luminescence, 2017,38(8): 1028-1032
翟英歌, 楚学影, 徐铭泽等. ZnS:Cu-罗丹明B的荧光共振能量转移性质[J]. 发光学报, 2017,38(8): 1028-1032 DOI： 10.3788/fgxb20173808.1028.

ZHAI Ying-ge, CHU Xue-ying, XU Ming-ze etc. Properties of Fluorescence Resonance Energy Transfer of ZnS:Cu-Rhodamine B[J]. Chinese Journal of Luminescence, 2017,38(8): 1028-1032 DOI： 10.3788/fgxb20173808.1028.

摘要

为了解决现有的基于量子点荧光共振能量转移体系的生物毒性问题，选用无毒的ZnS：Cu量子点与罗丹明B构建新型荧光共振能量转移体系。通过共沉淀法成功制备了形貌均一的ZnS：Cu纳米晶量子点。在此基础上，测试了不同掺杂浓度的ZnS：Cu量子点及罗丹明B的荧光光谱。然后，通过对ZnS：Cu量子点的表面修饰构建了以ZnS：Cu量子点为供体、罗丹明B为受体的荧光共振能量转移体系。实验结果表明：ZnS：2% Cu量子点的发光光谱与罗丹明B的吸收光谱在481 nm处有较大重合，说明构建荧光共振能量转移的最佳铜掺杂摩尔分数为2%。通过计算发现以ZnS：2% Cu量子点为供体、罗丹明B为受体的荧光共振能量转移体系的能量转移效率为25.8%。进一步实验结果表明，罗丹明B浓度也能够影响能量转移。

Abstract

In order to solve the biological toxicity of fluorescence resonance energy transfer (FRET) system based on quantum dots

non-toxic ZnS:Cu quantum dots and Rhodamine B were chosen to construct FRET system. ZnS:Cu nanocrystalline quantum dots with good morphology were successfully prepared by precipitation method. On this basis

the fluorescence spectra of ZnS:Cu quantum dots with different concentration of copper and fluorescence spectra of Rhodamine B were tested. Then

FRET system with ZnS:Cu quantum dots as donor and Rhodamine B as acceptor was successfully constructed by the surface modification. Experimental results indicate that the emission spectrum of ZnS:2%Cu matches the excitation spectrum of Rhodamine B most in 481 nm. So the optimum copper doping mole fraction for the construction of FRET system is 2%. The energy transfer efficiency of ZnS:Cu quantum dots as donor and Rhodamine B as acceptor is 25.8%. Further experimental results indicate that the concentration of Rhodamine B also can affect the energy transfer.

关键词

ZnS:Cu罗丹明B荧光共振能量转移

Keywords

ZnS:Curhodamine Bfluorescence resonance energy transfer

references

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