Performance Improvement of CH3NH3PbI3 Perovskite Solar Cell by CH3SH Doping
Performance Improvement of CH3NH3PbI3 Perovskite Solar Cell by CH3SH Doping
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DOI：
10.5772/62435
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发表时间：
2016-01
影响因子：
3.7
通讯作者：
Hong Li;Yingguo Yang;Xiao-Lu Feng;Kongchao Shen;Haiyang Li;Jiong Li;Zheng Jiang;F. Song
中科院分区：
文献类型：
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作者：
Hong Li;Yingguo Yang;Xiao-Lu Feng;Kongchao Shen;Haiyang Li;Jiong Li;Zheng Jiang;F. Song
有机金属卤化物钙钛矿由于其优异的性能，近年来成为光伏器件的一个有吸引力的候选者。因此，人们一直在努力寻找用于钙钛矿太阳能电池的理想有机物。作为回应，我们调查的CH 3SH有机掺杂的CH 3 NH3 PbI 3钙钛矿太阳能电池的结构和相关性能的影响，通过在原位同步加速器为基础的掠入射X射线衍射（GIXRD），连同扫描电子显微镜（SEM）。原位GIXRD研究清楚地说明了由有机掺杂剂引起的钙钛矿结构的转变和修饰，这随后导致所制造的太阳能电池的功率转换效率的提高。值得注意的是，通过SEM在钙钛矿膜中发现了纳米多孔形态和纳米晶体结构;它们也通过GIXRD测量中的加宽峰/特征的增加来证实。总的来说，我们的研究最终可能会为高性能钙钛矿太阳能电池的制造提供一种有吸引力的策略。
Organometal halide perovskites have recently emerged as an appealing candidate in photovoltaic devices due to their excellent properties. Therefore, intense efforts have been devoted to find the ideal organics for perovskite solar cells. In response, we investigate the doping effect of CH3SH organic on the structure and related performance of a CH3NH3PbI3 perovskite solar cell, via in situ synchrotron-based grazing incidence X-ray diffraction (GIXRD), together with scanning electron microscopy (SEM). In situ GIXRD investigations clearly illustrated the transformation and modification of the perovskite structure induced by the organic dopant, which subsequently led to the enhancement of the power conversion efficiency of fabricated solar cells. Notably, nanoporous morphology and nanocrystalline structures were discovered in the perovskite film by SEM; they were also confirmed by the increase in broadening peaks/features in the GIXRD measurements. Overall, our study may ultimately result in an attractive strategy for the fabrication of high performance perovskite solar cells.