Lighting device having a photoconversion layer
US10538699B2 · kind B2 · utility
1Cited by
3References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 13, 2017 |
| Grant date | Jan 21, 2020 |
| Priority date | — |
| Expiry date | Dec 16, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2211/182
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting device includes a light source and a photoconversion layer including a perovskite compound represented by Formula 1. The perovskite compound absorbs at least part of light emitted from the light source and emits light having a different wavelength range from the absorbed light: [A][B][X]3 <Formula 1> In Formula 1, A is at least one monovalent organic cation, at least one a monovalent inorganic cation, or any combination thereof, B is at least one divalent inorganic cation, and X is at least one monovalent anion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.