Amorphous, hydrogenated carbon (a-C:H) photovoltaic cell

Details Amorphous, hydrogenated carbon (a-C:H) photovoltaic cell Amorphous, hydrogenated carbon (a-C:H) photovoltaic cell

1995-01-19

1996-10-08

Weisstuch, Aaron

Batteries: thermoelectric and photoelectric

Photoelectric

Panel or array

136255, 136258, 257 53, 257 54, 257431, 257440, 257449, 257458, 437 4, 437101, H01L 3106, H01L 31068, H01L 3107, H01L 31075, H01L 3120

Patent

active

055627811

ABSTRACT:
A photovoltaic cell comprising a plurality of film layers, at least one of the layers being a semiconductor film of amorphous, hydrogenated carbon. The preferred embodiment comprises a plurality of semiconductor films sandwiched together in layers, every three layers forming a PIN junction. All films are made of amorphous, hydrogenated carbon and vary only by dopant levels within each PIN junction. There are variations in bandgap from one PIN junction to the next in order that the photovoltaic effect in each PIN junction will be caused by a different portion of the spectrum of light.

REFERENCES:
patent: 5039358 (1991-08-01), Birkle et al.
patent: 5055421 (1991-10-01), Birkle et al.
patent: 5087959 (1992-02-01), Omori et al.
patent: 5206534 (1993-04-01), Birkle et al.
Veerasamy et al., "Photoresponse characteristics of n-type tetrahedral amorphous carbon/p-type Si heterojunction diodes", Appl. Phys. Lett., vol. 64, No. 17, Apr. 25, 1994, pp. 2297-2299.

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