Batteries: thermoelectric and photoelectric – Photoelectric – Cells
Patent
1994-11-07
1995-08-08
Weisstuch, Aaron
Batteries: thermoelectric and photoelectric
Photoelectric
Cells
136255, 136293, 437 4, 437108, 437109, 257458, 320 2, 320 5, 320 9, H01L 31075, H01L 3118
Patent
active
054395330
ABSTRACT:
An object of the present invention is to provide a photovoltaic device and a method of producing the photovoltaic device which can prevent recombination of photo-excited carriers and which permits increases in the open circuit voltage and the carrier range. The photovoltaic device of the present invention has a laminate structure composed of at least a p-type layer of a silicon non-single crystal semiconductor, a photoactive layer having a plurality of i-type layers, and an n-type layer. The photoactive layer has a laminate structure composed of a first i-type layer deposited on the side of the n-type layer by a microwave plasma CVD process, and a second i-type layer deposited on the side of said the p-type layer by an RF plasma CVD process. The first i-type layer deposited by the microwave plasma CVD process contains at least silicon and carbon atoms, and has a minimum band gap between the center thereof and the p-type layer, and the second i-type layer deposited by the RF plasma CVD process contains at least silicon atoms and has a thickness of 30 nm or less.
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Kariya Toshimitsu
Koda Yuzo
Matsuda Koichi
Matsuyama Jinsho
Okada Naoto
Canon Kabushiki Kaisha
Weisstuch Aaron
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