Method of making zinc sulfide precursor material for a copper-activated zinc sulfide electroluminescent phosphor
US5269966A · kind A · utility
5Cited by
11References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1992 |
| Grant date | Dec 14, 1993 |
| Priority date | — |
| Expiry date | Dec 31, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/584
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A zinc sulfide precursor material having axially symmetric platelet-type particles for a copper-activated zinc sulfide electroluminescent phosphor is made by reacting zinc- and copper-containing species with hydrogen sulfide and hydrogen chloride gases in a low-temperature vapor state reaction to obtain copper-containing zinc sulfide particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.