Journal of Guangdong University of Technology ›› 2021, Vol. 38 ›› Issue (02): 83-87.doi: 10.12052/gdutxb.200047

• Comprehensive Studies • Previous Articles     Next Articles

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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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

CLC Number: 

  • O611
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