广东工业大学学报 ›› 2021, Vol. 38 ›› Issue (02): 83-87.doi: 10.12052/gdutxb.200047

• 综合研究 • 上一篇    下一篇

镓离子掺杂的CsPbBr3量子点的制备及其性能研究

周民华, 张文进, 潘春阳   

  1. 广东工业大学 轻工化工学院, 广东 广州 510006
  • 收稿日期:2020-03-19 出版日期:2021-03-10 发布日期:2021-01-13
  • 通信作者: 潘春阳(1981-),男,教授,博士生导师,主要研究方向为无机光电材料,E-mail:panchuny@gdut.edu.cn E-mail:panchuny@gdut.edu.cn
  • 作者简介:周民华(1993-)，男，硕士研究生，主要研究方向为钙钛矿量子点材料
  • 基金资助:
    国家自然科学基金资助项目(21671044)

Preparation and Properties of CsPbBr3 Quantum Dots Doped with Gallium Ions

Zhou Min-hua, Zhang Wen-jin, Pan Chun-yang   

  1. School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
  • Received:2020-03-19 Online:2021-03-10 Published:2021-01-13

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摘要： 通过改进的一锅热注入法, 研究了不同Ga3+的量掺杂CsPbBr3后的荧光光谱变化, 并且高荧光量子产率(Photoluminescence Quantum Yield，PLQY)在Ga3+和Pb2+的进料摩尔比为1∶1的时候达到最高, 是47%的蓝光。本文成功地将掺杂Ga3+的钙钛矿量子点负载到了硼酸钴晶体材料上, 发现其荧光强度在很长一段时间都没有明显的猝灭现象, 这增强了钙钛矿量子的稳定性。

关键词: 掺杂Ga3+钙钛矿量子点, 一锅热注入法, 稳定性, 高荧光量子产率

Abstract: We studied the fluorescence spectrum changes after doping CsPbBr3 with different amounts of Ga3+ by an improved one-pot hot-injection method, and photoluminescence quantum yield (PLQY) reached the highest when the molar ratio of Ga3+ and Pb2+ was 1∶1, which was 47% blue light. We successfully loaded Ga3+-doped perovskite quantum dots onto the cobalt borate crystal material, and found that the fluorescence intensity has no obvious quenching phenomenon for a long time, which enhances the stability of the perovskite quantum.

Key words: perovskite quantum dots doped Ga3+, one-pot hot injection method, stability, photoluminescence quantum yield

中图分类号: 

  • O611
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