Luminescence conversion material and fabrication method thereof
US11807787B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2021 |
| Grant date | Nov 7, 2023 |
| Priority date | — |
| Expiry date | Mar 8, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2004/80
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A luminescence conversion material is provided. The luminescence conversion material includes: a hybrid luminescence conversion particle, a first cladding material covering the hybrid luminescence conversion particle, and a second cladding material formed on the first cladding material and covering the first cladding material. The hybrid luminescence conversion particle includes a matrix and a plurality of quantum dots uniformly dispersed in the matrix. The first cladding material includes silicon oxide. The ratio α (absorbance ratio α: A939/A1000-1150) of the absorbance at 939 cm−1 (A939) to the absorbance peak at 1000-1150 cm−1 (A1000-1150) in a FTIR spectrum of the first cladding material is less than or equal to 0.8.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.