Photovoltaic cell

Details Photovoltaic cell Photovoltaic cell

1978-03-31

1979-07-03

Weisstuch, Aaron

Batteries: thermoelectric and photoelectric

Thermoelectric

Radiation pyrometer

136 89CD, 357 30, 357 59, 357 62, 427 74, H01L 3106

Patent

active

041599144

ABSTRACT:
A photovoltaic cell having an electrically conductive substrate, which may be glass having a film of conductive tin oxide; a first layer containing a suitable semiconductor, which layer has a first component film with an amorphous structure and a second component film with a polycrystalline structure; a second layer forming a heterojunction with the first layer; and suitable electrodes where the heterojunction is formed from a solution containing copper, the amorphous film component is superposed above an electrically conductive substrate to resist permeation of the copper-containing material to shorting electrical contact with the substrate. The penetration resistant amorphous layer permits a variety of processes to be used in forming the heterojunction with even very thin layers (1-6.mu. thick) of underlying polycrystalline semi-conductor materials. In some embodiments, the amorphous-like structure may be formed by the addition of aluminum or zirconium compounds to a solution of cadmium salts sprayed over a heated substrate.

REFERENCES:
patent: 2912370 (1959-11-01), Taverna
patent: 3975211 (1976-08-01), Shirland
patent: 4086101 (1978-04-01), Jordan et al.

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