Annealing processes for photovoltaics
US8828782B2 · kind B2 · utility
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54References
19Claims
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Key dates
| Filing date | Sep 15, 2011 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Apr 10, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
Processes for making a solar cell by depositing various layers of components on a substrate and converting the components into a thin film photovoltaic absorber material. Processes of this disclosure can be used to control the stoichiometry of metal atoms in making a solar cell for targeting a particular concentration and providing a gradient of metal atom concentration. A selenium layer can be used in annealing a thin film photovoltaic absorber material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.