Cadmium-free quantum dot nanoparticles

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United States of America Patent

PATENT NO 9853190
SERIAL NO

14579237

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Abstract

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Quantum dot semiconductor nanoparticle compositions that incorporate ions such as zinc, aluminum, calcium, or magnesium into the quantum dot core have been found to be more stable to Ostwald ripening. A core-shell quantum dot may have a core of a semiconductor material that includes indium, magnesium, and phosphorus ions. Ions such as zinc, calcium, and/or aluminum may be included in addition to, or in place of, magnesium. The core may further include other ions, such as selenium, and/or sulfur. The core may be coated with one (or more) shells of semiconductor material. Example shell semiconductor materials include semiconductors containing zinc, sulfur, selenium, iron and/or oxygen ions.

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Patent Owner(s)

Patent OwnerAddress
NANOCO TECHNOLOGIES LTDMANCHESTER M13 9NT

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Daniels, Steven Derbyshire, GB 29 392
Glarvey, Paul Anthony Stockport, GB 3 36
Harris, James Manchester, GB 123 4155
Narayanaswamy, Arun Manchester, GB 23 383
Pickett, Nigel Manchester, GB 78 1545

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