钙钛矿太阳能电池
化学工程
能量转换效率
太阳能电池
锐钛矿
光伏系统
二氧化钛
作者
Wanpei Hu,Shangfeng Yang,Shihe Yang
标识
DOI:10.1016/j.trechm.2019.11.002
摘要
Titanium oxide (TiO2) is commonly used as an electron transport layer (ETL) of regular-structure perovskite solar cells (PSCs); however, it suffers from inherent drawbacks such as low electron mobility and a high density of trap states. Modifying the surface chemistry of TiO2 has proved facile and efficient in enhancing key electron-transport properties, thereby improving device performance. In this review, we summarize recent progress on the surface modification of TiO2 in planar PSCs. The functions of different modifiers in improving device performance are elucidated, revealing the influence of modifier chemical and electronic structure on the properties of TiO2. This offers new opportunities to exploit novel materials for modifying TiO2 toward high-efficiency PSCs.
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