Quantum dot and method of producing the same; and wavelength converting member, lighting member, back light unit, and display device using quantum dot
US11124703B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Oct 12, 2018 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Oct 12, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2004/03
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided is a Cd-free blue fluorescent quantum dot with a narrow fluorescence FWHM. The quantum dot does not contain cadmium and its fluorescence FWHIM is 25 nm or less. The quantum dot is preferably a na.nocrystal containing zinc and selenium or zinc and selenium and sulfur. Further, the quantum dot preferably has a core-shell structure in which the nanocrystal serves as a core and the surface of the core is coated with a shell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.