Batteries: thermoelectric and photoelectric – Photoelectric – Cells
Patent
1994-09-02
1995-11-28
Weisstuch, Aaron
Batteries: thermoelectric and photoelectric
Photoelectric
Cells
136218, 136264, 427 76, 437 5, 437234, 257184, 257201, 257431, 257458, H01L 3106, H01L 31072, H01L 3118, H01L 31078
Patent
active
054703972
ABSTRACT:
A process and apparatus (70) for making a large area photovoltaic device (22) that is capable of generating low cost electrical power. The apparatus (70) for performing the process includes an enclosure (126) providing a controlled environment in which an oven (156) is located. At least one and preferably a plurality of deposition stations (74,76,78) provide heated vapors of semiconductor material within the oven (156) for continuous elevated temperature deposition of semiconductor material on a sheet substrate (24) including a glass sheet (26) conveyed within the oven. The sheet substrate (24) is conveyed on a roller conveyor (184) within the oven (156) and the semiconductor material whose main layer (82) is cadmium telluride is deposited on an upwardly facing surface (28) of the substrate by each deposition station from a location within the oven above the roller conveyor. A cooling station (86) rapidly cools the substrate (24) after deposition of the semiconductor material thereon to strengthen the glass sheet of the substrate.
REFERENCES:
patent: 5248349 (1993-09-01), Foote et al.
Foote James B.
Kaake Steven A. F.
Meyers Peter V.
Nolan James F.
Solar Cells, Inc.
Weisstuch Aaron
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