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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
纸质出版日期:2017-12-5,
网络出版日期:2017-8-28,
收稿日期:2017-4-21,
修回日期:2017-6-17,
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刘旭, 白晶晶, 张荣香等. 光浴对CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>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 CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub> Films[J]. Chinese Journal of Luminescence, 2017,38(12): 1629-1635
刘旭, 白晶晶, 张荣香等. 光浴对CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>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 CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub> Films[J]. Chinese Journal of Luminescence, 2017,38(12): 1629-1635 DOI: 10.3788/fgxb20173812.1629.
研究了CH
3
NH
3
PbI
3
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
3
NH
3
PbI
3
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
3
NH
3
PbI
3
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
3
NH
3
PbI
3
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
3
NH
3
PbI
3
薄膜在光浴条件下的光致发光量子效率演化行为。
The photoluminescence quantum efficiency evolution of CH
3
NH
3
PbI
3
films was studied in this paper. During the light soaking the photoluminescence quantum efficiency of CH
3
NH
3
PbI
3
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
3
NH
3
PbI
3
films. One process would increase the photoluminescence quantum efficiency of CH
3
NH
3
PbI
3
film
and the other one would reduce its photoluminescence quantum efficiency. Both processes determine the evolution of photoluminescence quantum efficiency of CH
3
NH
3
PbI
3
films together.
光浴CH3NH3PbI3光致发光量子效率缺陷钝化
light soakingCH3NH3PbI3photoluminescence quantum efficiencydefectpassivation
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