Stable FAPbI3 hydrate structure by kinetics negotiation for solar cells

被引：7

作者：

Wang, Ryan Taoran ^{[1
,2
]}

Zhang, Yu ^{[1
]}

Wu, Xiaoxue ^{[2
]}

Zhang, Weiwei ^{[3
]}

Chi, Longxing ^{[3
]}

Xu, Fan ^{[4
,5
]}

机构：

[1] South China Normal Univ, Coll Biophoton, 55 Zhongshan Ave W, Guangzhou 510631, Guangdong, Peoples R China

[2] Chinese Acad Sci, Energy Mat & Optoelect Unit, Songshan Lake Mat Lab, Dongguan 523808, Guangdong, Peoples R China

[3] Univ Toronto, Dept Mat Sci & Engn, 184 Coll St, Wallberg Mem Bldg, Toronto, ON, Canada

[4] Peking Univ, Frontiers Sci Ctr Nanooptoelectron, Collaborat Innovat Ctr Quantum Matter, Sch Phys,State Key Lab Artificial Microstruct & Me, Beijing 100871, Peoples R China

[5] Shenzhen BTR New Energy Technol Inst Co Ltd, Shenzhen 518118, Guangdong, Peoples R China

来源：

SUSTAINABLE ENERGY & FUELS | 2023年 / 7卷 / 08期

关键词：

PEROVSKITE; PERFORMANCE; PHASE; STABILITY;

D O I：

10.1039/d3se00062a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The instability of formamidinium lead iodide (FAPbI(3)) perovskite has limited its application in renewable energy development, despite the highest power conversion efficiency (PCE) it exhibited. A step forward has been achieved here by negotiating the hydration kinetics via adjusting the moisture partial pressure. The stable hydrate was restricted to precipitating only in the area surrounding the grain boundary under the influence of the moisture partial pressure, avoiding the large strain created by the complete hydration reaction, which preserved the condensed morphology of the perovskite film. The PCE of such a device was thus enhanced to more than 10%, as opposed to the value of 0.32% in previous results, with comparable stability to the pure moisture-stable hydrate-based film, which not only provided a promising solution to the lifetime problem, but also provided fresh inspiration for thin film growth kinetics.

引用

页码：1974 / 1980

页数：7

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