Issue Date: February 2, 2015 | Web Date: January 29, 2015
Large, High-Quality Crystals Boost Perovskite Performance
One way to make bigger and better perovskite solar cells could be making bigger and better perovskite crystals, according to three new studies.
Perovskite materials are inexpensive, easy to synthesize, and already competitive with benchmark semiconductors like crystalline silicon in terms of how efficiently they convert sunlight into electricity. Conventional perovskite cells use films of polycrystalline methylammonium lead iodide. Electrical charge carriers within typical microscopic crystals travel less than a micrometer on average before crashing . . .
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