Solution synthesis of mixed-metal chalcogenide nanoparticles and spray deposition of precursor films
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United States of America Patent
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Oct 3, 2000
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app pub date -
Jan 27, 1998
filing date -
Sep 29, 1995
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Abstract
A colloidal suspension comprising metal chalcogenide nanoparticles and a volatile capping agent. The colloidal suspension is made by reacting a metal salt with a chalcogenide salt in an organic solvent to precipitate a metal chalcogenide, recovering the metal chalcogenide, and admixing the metal chalcogenide with a volatile capping agent. The colloidal suspension is spray deposited onto a substrate to produce a semiconductor precursor film which is substantially free of impurities.
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