Quantum dot and wavelength converting member, lighting member, back light unit, and display device using quantum dot, and method of producing quantum dot
US11257981B2 · kind B2 · utility
1Cited by
0References
11Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 27, 2018 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | Jul 27, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/8513
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention seeks to provide cadmium-free quantum dots with a narrow fluorescence FWHM. The quantum dot does not contain cadmium and its fluorescence FWHM is 30 nm or less. The quantum dot is preferably a nanocrystal containing zinc and tellurium or zinc and tellurium and sulfur or zinc and tellurium 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.