Ligand exchange of nanocrystal films

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United States of America Patent

PATENT NO 11993860
APP PUB NO 20220243352A1
SERIAL NO

17587885

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Abstract

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A method includes at least partially submerging a substrate in a colloidal mixture of nanocrystals and a first solvent. The nanocrystals have first ligands coupled thereto. The method also includes applying an electric field to the colloidal mixture to form a solvated nanocrystal film and removing the solvated nanocrystal film from the first solvent. The method further includes applying a second solvent to the solvated nanocrystal film for ligand exchange. The second solvent comprises second ligands. A nanocrystal film product formed by one-step ligand exchange includes at least one dimension greater than 100 nm and ordered nanocrystals characterized as having a domain size of greater than 100 nm.

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Patent Owner(s)

Patent OwnerAddress
LAWRENCE LIVERMORE NATIONAL SECURITY LLC7000 EAST AVENUE LIVERMORE CA 94550

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kweon, Kyoung Eun Pleasonton, US 5 0
Orme, Christine A Oakland, US 11 14
Sadigh, Babak Union City, US 7 7
Sawvel, April Union City, US 7 1276
Xu, Xiaojie Union City, US 48 464

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