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

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.


Published in:
Angewandte Chemie-International Edition, 58, 17, 5587-5591
Year:
Apr 16 2019
Publisher:
Weinheim, WILEY-V C H VERLAG GMBH
ISSN:
1433-7851
1521-3773
Keywords:
Laboratories:




 Record created 2019-06-18, last modified 2019-06-25


Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)