Abstract
Methylamine-induced thin-film transformation at room-temperature is discovered, where a porous, rough, polycrystalline NH4PbI3non-perovskite thin film converts stepwise into a dense, ultrasmooth, textured CH3NH3PbI3perovskite thin film. Owing to the beneficial phase/structural development of the thin film, its photovoltaic properties undergo dramatic enhancement during this NH4PbI3-to-CH3NH3PbI3transformation process. The chemical origins of this transformation are studied at various length scales.
Original language | English (US) |
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Pages (from-to) | 14723-14727 |
Number of pages | 5 |
Journal | Angewandte Chemie - International Edition |
Volume | 55 |
Issue number | 47 |
DOIs | |
State | Published - 2016 |
Keywords
- hybrid perovskites
- solar cells
- thin films
ASJC Scopus subject areas
- Catalysis
- Chemistry(all)