Method for preparing single crystalline zinc sulfide powder for phosphor
US7153485B2 · kind B2 · utility
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3References
7Claims
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Assignee
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Key dates
| Filing date | May 7, 2002 |
| Grant date | Dec 26, 2006 |
| Priority date | — |
| Expiry date | Nov 6, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/565
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention relates to a method for preparing a Zinc Sulfide powder, and provides a method for preparing a single crystalline powder of Zinc Sulfide (ZnS) a high crystallinity comprising a step of conducting a hydrothermal reaction of a) Zinc Oxide or Zinc acetate as Zinc source and b) thioacetamide or thiourea as Sulfur source at a temperature of 180 to 230° C. and a fluorescent substance using the same as a source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.