材料科学
碘化物
钙钛矿(结构)
吸光度
能量转换效率
锡
太阳能电池
SN2反应
带隙
铅(地质)
钙钛矿太阳能电池
粒度
化学工程
阳极
理想(伦理)
无机化学
工程物理
纳米技术
光电子学
电极
光学
冶金
有机化学
化学
物理化学
哲学
工程类
地质学
物理
地貌学
认识论
作者
Yunfei Yin,Sufang Fu,Sheng Zhou,Yiyun Song,Lin Li,Mingyi Zhang,Jie Wang,Pandiyarajan Mariyappan,Saad M. Alshehri,Tansir Ahamad,Yusuke Yamauchi
标识
DOI:10.1007/s13391-020-00206-3
摘要
Ideal bandgap ~ 1.4 eV of lead–tin (Pd–Sn) organic–inorganic hybrid perovskite absorber is essential to further enhance the power conversion efficiency of perovskite solar cells (PVSCs). However, due to the facile oxidation of Sn2+, large amount of Sn substituted Pb based PVSCs suffer with low stability in ambient environment. In this work, we realize an ideal bandgap perovskite by introducing a small amount (10 mol%) of Sn2+ to methylammonium lead iodide (MAPbI3). A large grain size MAPb0.9Sn0.1I3 films with strong absorbance can be obtained. As a result, the best performance up to 18.3% efficiency is achieved. Importantly, the MAPb0.9Sn0.1I3 cell retains 90% of its performance after operation at the maximum power point under full 1-sun illumination for 500 h, in contrast to the quick degradation of MAPbI3 cell. This study demonstrates the promising potential of stable and efficient ideal band-gap Pb–Sn PVSCs.
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