结晶度
材料科学
甲脒
氯
钙钛矿(结构)
磁滞
能量转换效率
制作
化学工程
光电子学
太阳能电池
化学
光伏系统
纳米技术
钙钛矿太阳能电池
带隙
复合材料
冶金
病理
工程类
替代医学
物理
医学
量子力学
作者
Jian Qing,Hrisheekesh Thachoth Chandran,Yuanhang Cheng,Sai‐Wing Tsang,Ming‐Fai Lo,Chun‐Sing Lee
标识
DOI:10.1016/j.orgel.2016.08.009
摘要
Abstract Recently formamidinium (FA) based perovskite solar cell was demonstrated to show high performance and better stability upon partial substitution of FA with Cs cation. However, the fabrication of device required high-temperature processing on TiO 2 electrode and thus limits the use of flexible polymeric substrates. Here, we present a low temperature approach for the fabrication of p-i-n perovskite solar cells based on Cs 0.15 FA 0.85 PbI 3 . Furthermore, we investigated the effects of chlorine on the morphology and crystallinity of the perovskite films and the corresponding photovoltaic performance. Chlorine incorporation can significantly enlarge the size of grains and improve the crystallinity of perovskite films with full surface coverage. A best power conversion efficiency of 14.5% was realized for planar perovskite solar cells with negligible hysteresis and remarkable reproducibility.
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