Title:
PHOTOVOLTAIC ELEMENT AND MANUFACTURE THEREOF
Document Type and Number:
Japanese Patent JP2974485
Kind Code:
B2
Abstract:
PURPOSE: To provide a photovoltaic element which is improved in light reflectivity and light trapping effect to be entranced in conversion efficiency, small in diffusion of metal atom, high in chemical resistance and reliability preventing an overcurrent even if pinholes are generated, and can be easily mass-produced.
CONSTITUTION: A metal layer 102 whose surface is smooth and high in reflectivity is provided onto a substrate 101, and a transparent layer 103 whose surface opposite to the metal layer 102 is rugged is provided to the metal layer 102 to constitute a back reflective layer. A semiconductor 104 is bonded to the lack reflective layer, and a transparent electrode 107 is laminated thereon to form a photovoltaic element. It is preferable that the surface of the bonded semiconductor 104 is rugged as well as the back reflective layer, and the transparent layer 103 is doped with impurities to be enhanced in resistance. One of irregularity forming means is that the surface of a substrate is dipped into acid or alkali or salt water.
Inventors:
TOOYAMA JO
NAKAGAWA KATSUMI
NAKAGAWA KATSUMI
Application Number:
JP2005292A
Publication Date:
November 10, 1999
Filing Date:
February 05, 1992
Export Citation:
Assignee:
KYANON KK
International Classes:
B64G1/44; E04D13/18; B60R16/04; H01L31/0392; H01L31/04; H01L31/048; H01L31/052; H01L31/058; H01L31/076; H01L31/18; H01L31/20; H01M10/46; (IPC1-7): H01L31/04
Domestic Patent References:
| JP62123781A | ||||
| JP63199863A | ||||
| JP290574A | ||||
| JP1311511A | ||||
| JP6123423A |
Attorney, Agent or Firm:
Marushima Giichi
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