Lead halide-templated crystallization of methylamine-free perovskite for efficient photovoltaic modules

被引：584

作者：

Bu, Tongle ^{[1
,2
,3
]}

Li, Jing ^{[1
]}

Li, Hengyi ^{[1
]}

Tian, Congcong ^{[1
]}

Su, Jie ^{[4
]}

Tong, Guoqing ^{[3
]}

Ono, Luis K. ^{[3
]}

Wang, Chao ^{[1
]}

Lin, Zhipeng ^{[1
]}

Chai, Nianyao ^{[1
]}

Zhang, Xiao-Li ^{[5
]}

Chang, Jingjing ^{[4
]}

Lu, Jianfeng ^{[2
,6
]}

Zhong, Jie ^{[1
,2
]}

Huang, Wenchao ^{[1
]}

Qi, Yabing ^{[3
]}

Cheng, Yi-Bing ^{[2
]}

Huang, Fuzhi ^{[1
,2
]}

机构：

[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China

[2] Foshan Xianhu Lab Adv Energy Sci & Technol Guangd, Foshan 528216, Peoples R China

[3] Okinawa Inst Sci & Technol Grad Univ OIST, Energy Mat & Surface Sci Unit EMSSU, Onna, Okinawa 9040495, Japan

[4] Xidian Univ, Adv Interdisciplinary Res Ctr Flexible Elect, State Key Discipline Lab Wide Band Gap Semicond T, Sch Microelect,Shaanxi Joint Key Lab Graphene, Xian 710071, Peoples R China

[5] Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Peoples R China

[6] Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan 430070, Peoples R China

来源：

SCIENCE | 2021年 / 372卷 / 6548期

基金：

中国国家自然科学基金;

关键词：

ELASTIC BAND METHOD; SOLAR-CELLS; FILMS; MICROMETER; INCREASE;

D O I：

10.1126/science.abh1035

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Upscaling efficient and stable perovskite layers is one of the most challenging issues in the commercialization of perovskite solar cells. Here, a lead halide-templated crystallization strategy is developed for printing formamidinium (FA)-cesium (Cs) lead triiodide perovskite films. High-quality large-area films are achieved through controlled nucleation and growth of a lead halide_N-methyl-2-pyrrolidone adduct that can react in situ with embedded FAI/CsI to directly form alpha-phase perovskite, sidestepping the phase transformation from delta-phase. A nonencapsulated device with 23% efficiency and excellent long-term thermal stability (at 85 degrees C) in ambient air (similar to 80% efficiency retention after 500 hours) is achieved with further addition of potassium hexafluorophosphate. The slot die-printed minimodules achieve champion efficiencies of 20.42% (certified efficiency 19.3%) and 19.54% with an active area of 17.1 and 65.0 square centimeters, respectively.

引用

页码：1327 / +

页数：50

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