H - Electricity – 01 – L
Patent
H - Electricity
01
L
H01L 31/06 (2006.01) H01L 31/0296 (2006.01) H01L 31/18 (2006.01)
Patent
CA 2134241
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.
Foote James B.
Kaake Steven A.f.
Meyers Peter V.
Nolan James F.
First Solar Inc.
Smart & Biggar
Solar Cells Inc.
LandOfFree
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