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. 1234

Keywords

FormamidiniumIodidePerovskite (structure)Photovoltaic systemIntramolecular forceEnergy conversion efficiencyMaterials scienceChemistryAbsorption (acoustics)PhotochemistryInorganic chemistryOptoelectronicsOrganic chemistryComposite material

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Publication Info

Year
2015
Type
article
Volume
348
Issue
6240
Pages
1234-1237
Citations
6092
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Woon Seok Yang, Jun Hong Noh, Nam Joong Jeon et al. (2015). High-performance photovoltaic perovskite layers fabricated through intramolecular exchange. Science , 348 (6240) , 1234-1237. https://doi.org/10.1126/science.aaa9272

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DOI
10.1126/science.aaa9272