材料科学
卤化物
钙钛矿(结构)
光伏系统
能量转换效率
制作
两步走
化学工程
光伏
纳米技术
无机化学
沉积(地质)
光电子学
组合化学
电气工程
古生物学
病理
工程类
化学
替代医学
生物
医学
沉积物
标识
DOI:10.1002/adfm.201605654
摘要
Organometal halide perovskite materials have become a superstar in the photovoltaic (PV) field because of their advantageous properties, which boost the power conversion efficiency (PCE) of perovskite solar cells (PSCs) from about 3.8% to above 22% in just seven years. Most importantly, such promising achievement is mainly based on its low‐cost and solution‐processed fabrication technique. One of the most promising and famous approaches to fabricating perovskite is a two‐step sequential deposition method because precursor (e.g., PbI 2 ) deposition is controllable, versatile, and flexible. Due to tremendous efforts, great progress has been achieved on the two‐step sequential deposition method, which helps to promote the development of PSCs. Herein, the progresses on the two‐step sequential deposition method of perovskite layers is reviewed thoroughly. At first, the reaction process and principle is introduced and discussed. Then, the research on the deposition techniques, structures, and compositions of precursors (the first step) is presented. Subsequently, the developments on the conversion techniques, conversion solutions, and growth of large crystals at the second step are introduced. Finally, four important issues on the two‐step sequential deposition method will be stated, accompanied with proposed solutions.
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