Vacuum evaporating films of alkali metal polyphosphide
US4596721A · kind A · utility
5Cited by
5References
28Claims
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Assignee
Inventors
Key dates
| Filing date | Jun 29, 1983 |
| Grant date | Jun 24, 1986 |
| Priority date | — |
| Expiry date | Jun 29, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K10/462
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Fine quality catenated phosphorus thin films are produced in a high vacuum evaporator. Heated tungsten wire crackers are provided above the phosphorus boat and below the substrates. Amorphous pure phosphorus shiny red films have been deposited on glass, metallized glass and GaP and exhibit an optical edge at 2.0 eV. Films of KP.sub.x where x is equal to 15 or greater than 15 are produced by utilizing a second baffled boat source containing the potassium graphite intercalate, KC.sub.8. Addition of a nickel evaporation source provides nickel-doped polyphosphide films.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.