Effect of Light Soaking on Photoluminescence Quantum Efficiency of CH3NH3PbI3 Films

LIU Xu; BAI Jing-jing; ZHANG Rong-xiang; ZHAO Jin-jin; DANG Wei; ZHANG Lian-shui

doi:10.3788/fgxb20173812.1629

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Effect of Light Soaking on Photoluminescence Quantum Efficiency of CH₃NH₃PbI₃ Films

更新时间：2020-08-12

- Effect of Light Soaking on Photoluminescence Quantum Efficiency of CH₃NH₃PbI₃ Films
- Chinese Journal of Luminescence Vol. 38, Issue 12, Pages: 1629-1635(2017)
- 作者机构：
  
  1. 河北大学物理科学与技术学院河北省光电信息材料重点实验室,河北保定,071002
  2. 石家庄铁道大学材料科学与工程学院,河北石家庄,050043
- 作者简介：
- 基金信息：
  
  Supported by Higher Education Research Fund of Hebei Province(ZC2016003,QN2016093)
- DOI：10.3788/fgxb20173812.1629
  CLC： O482.31;O484.4+1
- Received：21 April 2017，
  
  Revised：17 June 2017，
  
  Published Online：28 August 2017，
  
  Published：05 December 2017
- 稿件说明：
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刘旭, 白晶晶, 张荣香等. 光浴对CH3NH3PbI3薄膜光致发光量子效率的影响[J]. 发光学报, 2017,38(12): 1629-1635

LIU Xu, BAI Jing-jing, ZHANG Rong-xiang etc. Effect of Light Soaking on Photoluminescence Quantum Efficiency of CH3NH3PbI3 Films[J]. Chinese Journal of Luminescence, 2017,38(12): 1629-1635
刘旭, 白晶晶, 张荣香等. 光浴对CH3NH3PbI3薄膜光致发光量子效率的影响[J]. 发光学报, 2017,38(12): 1629-1635 DOI： 10.3788/fgxb20173812.1629.

LIU Xu, BAI Jing-jing, ZHANG Rong-xiang etc. Effect of Light Soaking on Photoluminescence Quantum Efficiency of CH3NH3PbI3 Films[J]. Chinese Journal of Luminescence, 2017,38(12): 1629-1635 DOI： 10.3788/fgxb20173812.1629.

摘要

研究了CH

PbI

薄膜在光浴条件下的光致发光量子效率演化行为。在光浴过程中，CH

PbI

薄膜的光致发光量子效率表现为先增大再减小的变化趋势。发光动力学测量实验表明，在光浴过程中，CH

PbI

薄膜的载流子复合寿命与光致发光量子效率具有相同的变化趋势，即先增大再减小。根据实验结果可以推断，光浴引发CH

PbI

薄膜发生两种物理过程，分别使其光致发光量子效率升高和降低。两种过程共同决定了CH

PbI

薄膜在光浴条件下的光致发光量子效率演化行为。

Abstract

The photoluminescence quantum efficiency evolution of CH

PbI

films was studied in this paper. During the light soaking the photoluminescence quantum efficiency of CH

PbI

films increases first

then decreases gradually. The photoluminescence dynamics measurement shows that the carrier recombination lifetime changes synchronously with that of photoluminescence quantum efficiency. According to the above experimental phenomena

we propose that the light soaking induces two processes of opposite direction to CH

PbI

films. One process would increase the photoluminescence quantum efficiency of CH

PbI

film

and the other one would reduce its photoluminescence quantum efficiency. Both processes determine the evolution of photoluminescence quantum efficiency of CH

PbI

films together.

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Keywords

references

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