Journal
DYES AND PIGMENTS
Volume 120, Issue -, Pages 15-21Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2015.03.035
Keywords
Solar concentrator; Organic-inorganic perovskite; Luminescence; Solar cell; Down-shifting; Photovoltaic
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The Luminescent solar concentrators (LSCs) consist of a film containing optically active centers, converting part of the absorbing radiation into a specific emitting wavelength, when exposed to sunlight. The emitting centers are also crucial factors regarding their efficiency, so the selection must be done carefully. Here, we introduce organometal halide perovskite as a new class of phosphors, to use in luminescent solar concentrators. The coating of a Si PV cell with an organometal halide perovskite is tested. The obtained results reveal that, to find a suitable condition for effective LSC, it is necessary to determine appropriate molar ratio of organic and inorganic portion in synthesis perovskite, as well as concentration of halide perovskite in LSC. It is found that CH3NH3PbBr3 perovskite with the CH3NH2/PbBr2: 6/1 M ratio and 7.0 wt% perovskite concentration in Polyvinyl Alcohol (PVA) leads to the highest efficiency (increased about 45%, compared to uncoated cell). (C) 2015 Elsevier Ltd. All rights reserved.
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