METHODS FOR MAKING THIN FILM POLYCRYSTALLINE PHOTOVOLTAIC DEVICES USING ADDITIONAL CHEMICAL ELEMENT AND PRODUCTS THEREOF
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United States of America Patent
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Issued Date -
Dec 29, 2011
app pub date -
Dec 20, 2010
filing date -
Dec 21, 2009
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Abandoned
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Abstract
Method for making a photovoltaic device and structure thereof. The method includes providing a substrate including a glass layer, a first conductive layer on the glass layer, and a cadmium sulfide layer on the first conductive layer. Additionally, the method includes depositing one or more first materials on the cadmium sulfide layer. The one or more first materials include a first quantity of chemical element cadmium and a second quantity of chemical element tellurium. Moreover, the method includes performing a first thermal treatment to at least the first quantity of chemical element cadmium, the second quantity of chemical element tellurium, and a third quantity of chemical element chlorine, so that a polycrystalline layer composed of at least cadmium telluride is formed on the cadmium sulfide layer. Also, the method includes depositing one or more second materials on a surface of the polycrystalline layer.
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