A Scalable Methylamine Gas Healing Strategy for High-Efficiency Inorganic Perovskite Solar Cells

被引：130

作者：

Shao, Zhipeng ^{[1
]}

Wang, Zaiwei ^{[3
]}

Li, Zhipeng ^{[1
,4
]}

Fan, Yingping ^{[1
,4
]}

Meng, Hongguang ^{[1
]}

Liu, Ranran ^{[1
,4
]}

Wang, Yan ^{[1
]}

Hagfeldt, Anders ^{[3
]}

Cui, Guanglei ^{[1
]}

Pang, Shuping ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Shandong, Peoples R China

[2] Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China

[3] Ecole Polytech Fed Lausanne, Lab Photomol Sci, Inst Chem Sci Engn, CH-1015 Lausanne, Switzerland

[4] Qingdao Univ Sci & Technol, Qingdao 266042, Shandong, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2019年 / 58卷 / 17期

关键词：

defect healing; inorganic perovskites; methylamine; solar cells; thin films; EVOLUTION;

D O I：

10.1002/anie.201814024

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An easy and scalable methylamine (MA) gas healing method was realized for inorganic cesium-based perovskite (CsPbX3) layers by incorporating a certain amount of MAX (X=I or Br) initiators into the raw film. It was found that the excess MAX accelerated the absorption of the MA gas into the CsPbX3 film and quickly turned it into a liquid intermediate phase. Through the healing process, a highly uniform and highly crystalline CsPbX3 film with enhanced photovoltaic performance was obtained. Moreover, the chemical interactions between a series of halides and MA gas molecules were studied, and the results could offer guidance in further optimizations of the healing strategy.

引用

页码：5587 / 5591

页数：5

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