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CALCITE – AMPHIBOLE – CLINOPYROXENE ROCK
CALCITE – AMPHIBOLE – CLINOPYROXENE ROCK

1

Perovskite solar cell



A perovskite solar cell is a type of solar cell which includes a perovskite structured compound, most commonly a hybrid organic-inorganic lead or tin halide-based material, as the light-harvesting active layer. Perovskite materials such as the methylammonium or formamidinium lead halides are cheap to produce and simple to manufacture. Solar cell efficiencies of devices using these materials have increased from 3.8% in 2009 to a certified 20.1% in 2015, making this the fastest-advancing solar technology to date. According to detailed balance analysis, the efficiency limit of perovskite solar cells is about 31%, which approaches the Shockley–Queisser limit of gallium arsenide (33%). Their high efficiencies and low production costs make perovskite solar cells a commercially attractive option, with start-up companies already promising modules on the market by 2017.
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