Journal
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume 4, Issue 6, Pages 897-902Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jz400348q
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Funding
- Israel Ministry of Trade and Industry via its KAMIN program
- Israel Ministry of Science and Technology
- Wolfson Family trust
- Leona M. and Harry B. Helmsley Charitable Trust
- Nancy and Stephen Grand Center for Sensors and Security
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Mesoscopic solar cells, based on solution-processed organic-inorganic perovskite absorbers, are a promising avenue for converting solar to electrical energy. We used solution-processed organic-inorganic lead halide perovskite absorbers, in conjunction with organic hole conductors, to form high voltage solar cells. There is a dire need for low-cost cells of this type, to drive electrochemical reactions or as the high photon energy cell in a system with spectral splitting. These perovskite materials, although spin-coated from solution, form highly crystalline materials. Their simple synthesis, along with high chemical versatility, allows tuning their electronic and optical properties. By judicious selection of the perovskite lead halide-based absorber, matching organic hole conductor, and contacts, a cell with a similar to 1.3 V open circuit voltage was made. While further study is needed, this achievement provides a general guideline for additional improvement of cell performance.
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