Photoelectric transducer

• US 20060011232A1
• Filed: 08/22/2003
• Published: 01/19/2006
• Est. Priority Date: 09/09/2002
• Status: Abandoned Application

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Noda, Kazuhiro, Suzuki, Yusuke, Morooka, Masahiro
• Application Number:
  US10/527,351
• Publication Number:
  US 20060011232A1
• Time in Patent Office: Days
• US Class Current: 136/256
• CPC Class Codes: H01L 31/022425 for solar cells
• CPC Class Codes: H01L 31/022466 made of transparent conductive layers, e.g. TCO, ITO layers
• CPC Class Codes: H01L 31/022475 composed of indium tin oxide [ITO]
• CPC Class Codes: Y02E 10/542 Dye sensitized solar cells

Abstract

The present invention relates to a photovoltaic element conveniently used for a solar cell. An ITO substrate coated with a metallic oxide or a derivative thereof is used as a transparent electrode (3). Thus, the fall of a resistance value is suppressed even when the photovoltaic element is exposed to high temperature or acid.

Claims

1. A photovoltaic element comprising an ITO substrate coated with a metallic oxide or a derivative thereof as a transparent electrode.

2. The photovoltaic element according to claim 1, wherein the metallic oxide includes at least one element among Ti, Cu, Zn, As, Sr, Nb, Ib, Sn and W.

3. The photovoltaic element according to claim 1, wherein when the metallic oxide film is held for one hour in atmospheric air at 500°

C., the rise of a resistance value is 10 Ω

/cm² or lower.

4. The photovoltaic element according to claim 1, wherein a light transmittance of the ITO substrate coated with the metallic oxide in from 400 nm to 900 nm is 60% or higher.

5. The photovoltaic element according to claim 1, further comprising a metallic oxide semiconductor carrying a dye:

as an electrode of a dye-sensitized type solar cell.