Photovoltaic cell

Details Photovoltaic cell Photovoltaic cell

1997-03-19

1999-11-16

Chapman, Mark

Batteries: thermoelectric and photoelectric

Photoelectric

Cells

438 71, 438 72, H01L 3100

Patent

active

059862041

ABSTRACT:
By using an improved back reflecting layer, a photovoltaic cell having excellent migration resistance and a high photoelectric conversion efficiency is provided at high productivity. The photovoltaic cell includes a metal layer comprising a silver-aluminum alloy having a content of silver equal to or less than 30 atomic percent, the rest being aluminum, or a metal layer comprising a copper-aluminum alloy having a content of copper between 30 and 50 atomic percent, the rest being aluminum. It is preferable to form these layers at a relatively low temperature by sputtering, particularly at a temperature equal to or less than 110.degree. C. for the silver-aluminum alloy and at a temperature equal to or less than 120.degree. C. for the copper-aluminum alloy.

REFERENCES:
patent: 4419533 (1983-12-01), Czubatyj et al.
patent: 4492181 (1985-01-01), Ovshinsky et al.
patent: 4941032 (1990-07-01), Kobayashi et al.
patent: 5486238 (1996-01-01), Nakagawa et al.

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