Process for making photovoltaic devices and resultant product
A process and apparatus are disclosed for making a large area photovoltaic device that is capable of generating low cost electrical power. The apparatus for performing the process includes an enclosure providing a controlled environment in which an oven is located. At least one and preferably a plurality of deposition stations provide heated vapors of semiconductor material within the oven for continuous elevated temperature deposition of semiconductor material on a sheet substrate including a glass sheet conveyed within the oven. The sheet substrate is conveyed on a roller conveyor within the oven and the semiconductor material whose main layer is cadmium telluride is deposited on an upwardly facing surface of the substrate by each deposition station from a location within the oven above the roller conveyor. A cooling station rapidly cools the substrate after deposition of the semiconductor material thereon to strengthen the glass sheet of the substrate. 10 figs.
- Assignee:
- Solar Cells, Inc., Toledo, OH (United States)
- Patent Number(s):
- US 5,470,397/A/
- Application Number:
- PAN: 8-300,406
- OSTI ID:
- 131923
- Resource Relation:
- Other Information: PBD: 28 Nov 1995
- Country of Publication:
- United States
- Language:
- English
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Process for making photovoltaic devices and resultant product
Process for making photovoltaic devices and resultant product