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Deposition Sciences Inc. - Difficult Coatings - LB - 8/23

Tin Replaces Lead in Promising Solar Cell

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A new solar cell promises enhanced efficiency and a smaller environmental footprint. The new cell, developed by a team from Northwestern University, uses a perovskite structure composed of tin instead of the traditional lead as the light-absorbing material. It is a low-cost, easily manufactured, environmentally friendly solar cell. Cross-sectional view of a completed photovoltaic device using tin perovskite. Courtesy of Nature Photonics. The tin solar cell has an efficiency of around 6 percent, which the researchers said is a solid starting point. The tin material is unique in...Read full article

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    Published: May 2014
    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...
    AmericasBasic ScienceenergyGreenLightIllinoisleadMaterialsNorthwestern UniversityOpticsoxidationperovskitephotovoltaicsResearch & Technologysolar cellstinWeinberg College of Arts and Sciences

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