甲脒
环己烷
碘化物
光伏
钙钛矿(结构)
材料科学
钙钛矿太阳能电池
化学工程
纳米技术
化学
光伏系统
有机化学
无机化学
工程类
生态学
生物
作者
Davoud Dastan,Mustafa K. A. Mohammed,Raad Sh. Alnayli,Sadeer M. Majeed,Duha S. Ahmed,Ali K. Al-Mousoi,Rahul Pandey,M. Khalid Hossain,Sagar Bhattarai,Bandar Ali Al‐Asbahi,Md. Ferdous Rahman
出处
期刊:Langmuir
[American Chemical Society]
日期:2024-03-29
卷期号:40 (14): 7560-7568
标识
DOI:10.1021/acs.langmuir.4c00136
摘要
It is essential and challenging to develop green and cost-effective solar cells to meet the energy demands. Solar cells with a perovskite light-harvesting layer are the most promising technology to propel the world toward next-generation solar energy. Formamidinium lead tri-iodide (FAPbI3)-based perovskite solar cells (F-PSCs), with their considerable performance, offer cost-effective solar cells. One of the major issues that the PSC community is now experiencing is the stability of α-FAPbI3 at relatively low temperatures. In this study, we fabricated FAPbI3–PSCs using cyclohexane (CHX) material via a two-step deposition method. For this purpose, CHX is added to the formamidinium iodide:methylammonium chloride (FAI:MACl) solution as an additive and used to form a better FAPbI3 layer by controlling the reaction between FAI and lead iodide (PbI2). The CHX additive induces the reaction of undercoordinated Pb2+ with FAI material and produces an α-FAPbI3 layer with low charge traps and large domains. In addition, the CHX-containing FAPbI3 layers show higher carrier lifetimes and facilitate carrier transfer in F-PSCs. The CHX-modified F-PSCs yield a high champion efficiency of 22.84% with improved ambient and thermal stability behavior. This breakthrough provides valuable findings regarding the formation of a desirable FAPbI3 layer for photovoltaic applications and holds promise for the industrialization of F-PSCs.
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