Journal
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume 6, Issue 13, Pages 2452-2456Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpclett.5b00968
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Funding
- Leona M. and Harry B. Helmsley Charitable Trust
- Sidney E. Frank Foundation through Israel Science Foundation
- Israel Ministry of Science
- Israel National Nano-Initiative
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Hybrid organic-inorganic lead halide perovskite photovoltaic cells have already surpassed 20% conversion efficiency in the few years that they have been seriously studied. However, many fundamental questions still remain unanswered as to why they are so good. One of these is Is the organic cation really necessary to obtain high quality cells? In this study, we show that an all-inorganic version of the lead bromide perovslcite material works equally well as the organic one, in particular generating the high open circuit voltages that are an important feature of these cells.
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