Planar Heterojunction Perovskite Solar Cells via Vapor-Assisted Solution Process
California NanoSystems Institute · University of California, Los Angeles
Abstract
Hybrid organic/inorganic perovskites (e.g., CH3NH3PbI3) as light absorbers are promising players in the field of third-generation photovoltaics. Here we demonstrate a low-temperature vapor-assisted solution process to construct polycrystalline perovskite thin films with full surface coverage, small surface roughness, and grain size up to microscale. Solar cells based on the as-prepared films achieve high power conversion efficiency of 12.1%, so far the highest efficiency based on CH3NH3PbI3 with the planar heterojunction configuration. This method provides a simple approach to perovskite film preparation and paves the way for high reproducibility of films and devices. The underlying kinetic and thermodynamic…
Citation impact
- FWCI
- 207.82
- Percentile
- 100%
- References
- 34
Authors
9- QCQi ChenCorresponding
California NanoSystems Institute, University of California, Los Angeles
- HZHuanping Zhou
California NanoSystems Institute, University of California, Los Angeles
- ZHZiruo Hong
California NanoSystems Institute, University of California, Los Angeles
- SLSong Luo
California NanoSystems Institute, University of California, Los Angeles
- HDHsin‐Sheng Duan
California NanoSystems Institute, University of California, Los Angeles
Topics & keywords
- Perovskite (structure)
- Energy conversion efficiency
- Heterojunction
- Planar
- Chemistry
- Photovoltaics
- Microscale chemistry
- Crystallite
- Affordable and clean energy