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Pairing of Silicon, Perovskite Promising for Solar Efficiency

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CAMBRIDGE, Mass., March 24, 2015 — A pairing of silicon and perovskite has the potential to achieve significantly higher solar energy conversion efficiencies than standard, single-junction silicon cells. A prototype tandem solar cell developed by researchers at MIT and Stanford University has demonstrated an open-circuit voltage of 1.65 V, which the team said was its best-case scenario. The prototype’s a 13.7 percent power-conversion efficiency still leaves much to be desired. But in this first step the researchers overcame problems around pairing silicon with perovskite that could enable efficiencies greater...Read full article

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    Published: March 2015
    Glossary
    perovskite
    The term perovskite refers to a specific crystal structure commonly found in various materials. Perovskite structures have a cubic arrangement of oxygen ions, forming a framework within which other cations (positively charged ions) are located. This crystal structure was named after the mineral perovskite, which has the chemical formula CaTiO3 and was first discovered in the Ural Mountains of Russia. The general formula for the perovskite structure is ABX3, where: A represents a larger...
    Research & TechnologyAmericasMassachusettsCaliforniaMITStanfordsolarphotovoltaicstandemsiliconperovskiteMaterialsColin BailieJonathan P. Mailoa

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