Process for making thin film solar cell
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United States of America Patent
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Sep 3, 1991
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N/A
app pub date -
Nov 17, 1988
filing date -
Nov 27, 1987
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Expired
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Abstract
A method of making group I-III-VI compound semiconductors such as copper indium diselenide for use in thin film heterojunction photovoltaic devices. A composite film of copper, indium, and possibly other group IIIA elements, is deposited upon a substrate. A separate film of selenium is deposited on the composite film. The substrate is then heated in a chamber in the presence of a gas containing hydrogen to form the compound semiconductor material.
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