High-performance photovoltaic perovskite layers fabricated through intramolecular exchange
Top Cited Papers
- 12 June 2015
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 348 (6240) , 1234-1237
- https://doi.org/10.1126/science.aaa9272
Abstract
Taking in more sun: Most efforts to grow superior films of organic-inorganic perovskites for solar cells have focused on methylammonium lead iodide (MAPbI 3 ). However, formamidinium lead iodide (FAPbI 3 ) has a broader solar absorption spectrum that could ultimately lead to better performance. Yang et al. grew high-quality FAPbI 3 films by starting with a film of lead iodide and dimethylsulfoxide (DMSO) and then exchanging the DMSO with formamidinium iodide. Their best devices achieved power conversion efficiencies exceeding 20%. Science , this issue p. 1234Keywords
Funding Information
- National Research Foundation in Korea
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