Journal
NATURE COMMUNICATIONS
Volume 11, Issue 1, Pages -Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41467-020-19199-6
Keywords
-
Categories
Funding
- National Natural Science Foundation of China [61874123, 21572235]
- National Key R and D Program of China [2018YFA0208501]
- Strategic Priority Research Program of Chinese Academy of Sciences [XDA09020000]
Ask authors/readers for more resources
Defects from grain interiors and boundaries of perovskite films cause significant nonradiative recombination energy loss, and thus perovskite films with controlled crystallinity and large grains is critical for improvement of both photovoltaic performance and stability for perovskite-based solar cells. Here, a methylamine (MA(0)) gas-assisted crystallization method is developed for fabrication of methylammonium lead iodide (MAPbI(3)) perovskite films. In the process, the perovskite film is formed via controlled release of MA0 gas molecules from a liquid intermediate phase MAPbI(3)xMA(0). The resulting perovskite film comprises millimeter-sized grains with (110)-uniaxial crystallographic orientation, exhibiting much low trap density, long carrier lifetime, and excellent environmental stability. The corresponding perovskite solar cell exhibits a power conversion efficiency (PCE) of similar to 21.36%, which is among the highest reported for MAPbI(3)-based devices. This method provides important progress towards the fabrication of high-quality perovskite thin films for low-cost, highly efficient and stable perovskite solar cells.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available