Batteries: thermoelectric and photoelectric – Photoelectric – Panel or array
Patent
1992-03-02
1994-08-30
Weisstuch, Aaron
Batteries: thermoelectric and photoelectric
Photoelectric
Panel or array
136255, 136262, 136249, 257431, 257443, H01L 3105, H01L 31068, H01L 310304
Patent
active
053424514
ABSTRACT:
A gallium-arsenide optical power receiver of the type having a pn junction formed over a substrate and buffer layer has a window layer of a first alloy of aluminum gallium arsenide (Al.sub.x Ga.sub.1-x As) and a conductive layer of a second alloy of aluminum gallium arsenide (Al.sub.1-x Ga.sub.x As). Alternatively, the gallium arsenide optical power receiver has a second window layer of the first alloy of aluminum gallium arsenide disposed on the conductive layer, and a cap layer of gallium arsenide disposed on the second window layer. The sheet resistance of the emitter layer is negated by being in parallel with the low sheet resistance of the conductive layer to minimize the thickness and conductivity of the emitter may therefore be optimized solely for energy conversion efficient.
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Varian Associates Inc.
Weisstuch Aaron
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