钙钛矿(结构)
材料科学
非阻塞I/O
卤化物
能量转换效率
氧化铟锡
降级(电信)
氧化物
制作
铟
化学工程
太阳能电池
光伏系统
氧化锡
金属
纳米技术
光电子学
图层(电子)
无机化学
化学
冶金
催化作用
电子工程
电气工程
病理
替代医学
工程类
医学
生物化学
作者
Jingbi You,Lei Meng,Tze‐Bin Song,Tzung‐Fang Guo,Yang Yang,Wen Hsin Chang,Ziruo Hong,Huajun Chen,Huanping Zhou,Qi Chen,Yongsheng Liu,Nicholas De Marco
标识
DOI:10.1038/nnano.2015.230
摘要
Lead halide perovskite solar cells have recently attracted tremendous attention because of their excellent photovoltaic efficiencies. However, the poor stability of both the perovskite material and the charge transport layers has so far prevented the fabrication of devices that can withstand sustained operation under normal conditions. Here, we report a solution-processed lead halide perovskite solar cell that has p-type NiO(x) and n-type ZnO nanoparticles as hole and electron transport layers, respectively, and shows improved stability against water and oxygen degradation when compared with devices with organic charge transport layers. Our cells have a p-i-n structure (glass/indium tin oxide/NiO(x)/perovskite/ZnO/Al), in which the ZnO layer isolates the perovskite and Al layers, thus preventing degradation. After 60 days storage in air at room temperature, our all-metal-oxide devices retain about 90% of their original efficiency, unlike control devices made with organic transport layers, which undergo a complete degradation after just 5 days. The initial power conversion efficiency of our devices is 14.6 ± 1.5%, with an uncertified maximum value of 16.1%.
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