Phosphor, fabricating method thereof, method for regulating crystal phase thereof, and method for changing crystal phase hereof
US10351766B2 · kind B2 · utility
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6References
15Claims
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Key dates
| Filing date | Nov 29, 2016 |
| Grant date | Jul 16, 2019 |
| Priority date | — |
| Expiry date | Jun 20, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC30B29/12
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present disclosure provides a method for fabricating a phosphor. A first solution is formed by dissolving potassium hexafluorogermanate (K2GeF6) and either K2MnF6 or KMnO4 in a hydrofluoric acid solution. An anhydrous ethanol is added to the first solution to make a total concentration of fluoride ions of potassium hexafluorogermanate (K2GeF6), hydrofluoric acid, and either K2MnF6 or KMnO4 equal to or less than 48M to form a precipitate. Afterward, the precipitate is collected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.