Batteries: thermoelectric and photoelectric – Photoelectric – Panel or array
Patent
1993-06-18
1995-04-04
Weisstuch, Aaron
Batteries: thermoelectric and photoelectric
Photoelectric
Panel or array
H01L 3105, H01L 3106
Patent
active
054034043
ABSTRACT:
A multijunction photovoltaic device includes first, second, and third amorphous silicon p-i-n photovoltaic cells in a stacked arrangement. The intrinsic layers of the second and third cells are formed of a-SiGe alloys with differing ratios of Ge such that the bandgap of the intrinsic layers respectively decrease from the first uppermost cell to the third lowermost cell. An interface layer, composed of a doped silicon compound, is disposed between the two cells and has a lower bandgap than the respective n- and p-type adjacent layers of the first and second cells. The interface layer forms an ohmic contact with the one of the adjacent cell layers of the same conductivity type, and a tunnel junction with the other of the adjacent cell layers.
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Arya Rejeewa R.
Bennett Murray
Catalano Anthony W.
Amoco Corporation
Weisstuch Aaron
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