US Patent 7786376 High efficiency solar cells and manufacturing methods
Patent 7786376 was granted and assigned to Solexel on August, 2010 by the United States Patent and Trademark Office.
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A Schottky contact photovoltaic energy conversion cell. The Schottky contact photovoltaic energy conversion cell comprises a flexible substrate and a first array of a plurality of closely-spaced microscale pillars connected to a first electrical cell contact. The pillars and the contact are formed of (or having a top) layer of a first Schottky metal material with a work function selected for efficiently collecting photogenerated electrons. The Schottky contact photovoltaic energy conversion cell further comprises a second array of a plurality of closely-spaced microscale pillars connected to a second electrical cell contact. The pillars and the contact are formed of (or having a top) layer of a second Schottky metal material with a work function selected for efficiently collecting photogenerated holes. The Schottky contact photovoltaic energy conversion cell further comprises a semiconductor absorber thin-film layer covering the first and second contacts and filling spaces among all the pillars, for creating photogenerated electrons and holes.
US Patent 07786376 High efficiency solar cells and manufacturing methods US Patent 7786376 High efficiency solar cells and manufacturing methods
US Patent 07786376 High efficiency solar cells and manufacturing methods
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