Batteries: thermoelectric and photoelectric – Photoelectric – Cells
Patent
1994-07-15
1995-03-28
Weisstuch, Aaron
Batteries: thermoelectric and photoelectric
Photoelectric
Cells
136249, 136258, 257436, 257458, H01L 31052, H01L 31075
Patent
active
054013305
ABSTRACT:
The present invention aims to provide a photovoltaic element which can maintain high initial characteristics over long term usage even under severe environments, and can be mass-produced with high yield.
A photovoltaic element in which a light reflecting layer, a light reflection multiplying layer, an n-type layer, an i-type layer, and a p-type layer composed of a non-single crystal semiconductor material comprising at least silicon, and a transparent electrode are successively formed on a conductive substrate, characterized in that said light reflecting layer comprises silver or copper atoms as the main constituent and further contains at least one of oxygen, nitrogen, and carbon.
Also, in another embodiment, this photovoltaic element is characterized in that said light reflecting layer comprises silver as the main constituent, and further contains lead, lead and gold, or lead, gold, and a first transition group metal in an amount of 2 to 100 ppm.
REFERENCES:
A. Madan et al. "The Physics and Applications of Amorphous Semiconductors", pp. 245-248, published by Academic Press, Inc., 1988.
Y. Inoue et al., "Optical Confinement in a SiGe Solar Cells on Stainless Steel Substrates", 51st Academic Lecture Meeting, Japan Soc. of Appl. Phys., 1990.
Solar Energy Materials, vol. 20, pp. 99-110, 1990 by Hirasaka et al., "Design of Textured of Al Electrode for a Hydrogenated Amorphous Silicon Solar Cell."
Kariya Toshimitsu
Kondo Takaharu
Matsuda Koichi
Nishimoto Tomonori
Nishio Yutaka
Canon Kabushiki Kaisha
Weisstuch Aaron
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