Batteries: thermoelectric and photoelectric – Photoelectric – Panel or array
Patent
1989-06-20
1991-06-11
Weisstuch, Aaron
Batteries: thermoelectric and photoelectric
Photoelectric
Panel or array
437 2, 437 5, 437210, 437223, 437224, H01L 31048, H01L 3118
Patent
active
050229303
ABSTRACT:
A thin film photovoltaic panel includes a backcap for protecting the active components of the photovoltaic cells from adverse environmental elements. A spacing between the backcap and a top electrode layer is preferably filled with a desiccant to further reduce water vapor contamination of the environment surrounding the photovoltaic cells. The contamination of the spacing between the backcap and the cells may be further reduced by passing a selected gas through the spacing subsequent to sealing the backcap to the base of the photovoltaic panels, and once purged this spacing may be filled with an inert gas. The techniques of the present invention are preferably applied to thin film photovoltaic panels each formed from a plurality of photovoltaic cells arranged on a vitreous substrate. The stability of photovoltaic conversion efficiency remains relatively high during the life of the photovoltaic panel, and the cost of manufacturing highly efficient panels with such improved stability is significantly reduced.
REFERENCES:
patent: 3778684 (1973-12-01), Fischer et al.
patent: 4078944 (1978-03-01), Mlavsky
patent: 4239555 (1980-12-01), Scharlack et al.
patent: 4578526 (1986-03-01), Nakano et al.
patent: 4633032 (1986-12-01), Oido et al.
patent: 4705911 (1987-11-01), Nakano et al.
patent: 4735909 (1988-04-01), Albright et al.
Ackerman Bruce
Albright Scot P.
Jordan John F.
Photon Energy Inc.
Weisstuch Aaron
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