Photoelectric transducer

Details Photoelectric transducer Photoelectric transducer

1984-08-28

1987-02-17

Weisstuch, Aaron

Batteries: thermoelectric and photoelectric

Photoelectric

Cells

136256, 136258, 357 30, 357 55, 357 59, H01L 3106

Patent

active

046440917

ABSTRACT:
A photoelectric transducer comprising at least a light-transmissive substrate having a relatively flat surface provided on its light-receiving side and an uneven surface provided on its opposite side, and a photoelectric transducing layer provided on the uneven surface of the substrate. The photoelectric transducing layer comprises at least a light-transmissive conductive layer, a semiconductor layer, and a back conductive electrode layer. The back conductive electrode layer comprises a second light-transmissive conductive layer and a conductive layer. The uneven surface on the substrate includes numerous projections, each projection having a triangular section and a shape of pyramidal, ridged roof, or conical type. The projections and the second light-transmissive conductive layer of the uneven back conductive electrode layer elongate the optical path of light beams in the photoelectric transducing layer, and prevent the adherence of dust particles and the abrasion of the photoelectric transducing layer.

REFERENCES:
patent: 4554727 (1985-11-01), Deckman et al.
patent: 4571448 (1986-02-01), Barnett
H. W. Deckman et al, "Fabrication of Optically Enhanced Thin Film a-Si-H.sub.x Solar Cells", J. Vac. Sci. Technol., vol. A1(2), Apr.-Jun. 1983, pp. 578-582.
"Enhanced Optical Absorption Produced by Light Trapping in Amorphous Silicon Films", by T. Tiedje et al, presented at 16th IEEE Photovoltaic Specialists Conference, Sep. 27-30 (1982), pp. 1423-1424.
"Optical Enhancement of a-SiH.sub.x Solar Cells", by H. Deckman et al, presented at 16th IEEE Photovoltaic Specialists Conference, Sep. 27-30 (1982), pp. 1425-1426.

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