COPPER INDIUM GALLIUM CHALCOGENIDE MULTILAYER STRUCTURE WITH OPTIMIZED GALLIUM CONTENT AT ITS SURFACE
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app pub date -
Aug 28, 2012
filing date -
Feb 8, 2008
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Abandoned
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Abstract
A method of forming a Group IBIIIAVIA solar cell absorber, which includes a top surface region of less than or equal to 300 nm depth. The Ga/(Ga+In) molar ratio within the top surface region is in the range of 0.1-0.3. The Group IBIIIAVIA solar cell absorber is formed by reacting the layers of a multilayer material structure which includes a metallic film including at least Cu and In formed on a base, a separator layer including Se is formed on the metallic film, a metallic source layer substantially including Ga formed on the separator layer, and a cap layer substantially including Se formed on the source layer.
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