Semiconductor nanoparticle complex, semiconductor nanoparticle complex dispersion liquid, semiconductor nanoparticle complex composition, and semiconductor nanoparticle complex cured film

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United States of America Patent

PATENT NO 12054657
APP PUB NO 20220259492A1
SERIAL NO

17618768

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Abstract

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Provided is a semiconductor nanoparticle complex in which a ligand is coordinated to a surface of a semiconductor nanoparticle. The semiconductor nanoparticle is a core-shell type semiconductor nanoparticle including a core containing In and P and one or more layers of shells. The semiconductor nanoparticle further includes halogen and the molar ratio of halogen to In is 0.80 to 15.00 in terms of atoms. The ligand includes one or more kinds of mercapto fatty acid esters represented by the following general formula: HS—R1—COO—R2. The mercapto fatty acid ester has an SP value of 9.20 or more. The mercapto fatty acid ester has a molecular weight of 700 or less, and the average SP value of the entire ligand is 9.10 to 11.00. The present invention provides a semiconductor nanoparticle complex dispersible at a high mass fraction in a polar dispersion medium while keeping high fluorescence quantum yield.

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Patent Owner(s)

Patent OwnerAddress
SHOEI CHEMICAL INCTOKYO 163-0443

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kido, Makoto Tosu, JP 14 2
Moriyama, Takafumi Tosu, JP 15 31
Sasaki, Hirokazu Tosu, JP 62 304

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