Photovoltaic element and photovoltaic device

Details Photovoltaic element and photovoltaic device Photovoltaic element and photovoltaic device

2007-05-08

2007-05-08

Nguyen, Nam (Department: 1753)

Batteries: thermoelectric and photoelectric

Photoelectric

Cells

C136S256000

Reexamination Certificate

active

10245087

ABSTRACT:
An ITO film as a transparent conductive film is formed on a semiconductor layer comprising an amorphous semiconductor or a microcrystalline semiconductor, a comb-like collecting electrode is formed on the ITO film, and a cover glass containing alkaline ions is placed on the ITO film and collecting electrode with a resin film made of EVA between them. The (222) plane orientation degree of the ITO film (transparent conductive film) is not less than 1.0, preferably not less than 1.2 and not more than 2.6, and more preferably not less than 1.4 and not more than 2.5. Alternatively, the transparent conductive film has an orientation of (321) planes on the boundary side with respect to the semiconductor layer and mainly an orientation of (222) planes in the remaining portion. When the total thickness of the ITO film is 100 nm, the (321)/(222) diffraction strength ratio in a 10 nm-thick portion on the semiconductor layer side is not less than 0.5 and not more than 2.5.

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