Title:
COMPOUND THIN FILM SOLAR CELL AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2011/108033
Kind Code:
A1
Abstract:
Provided is a highly-efficient compound thin film solar cell in which a light absorption layer (14) is adjusted to have the most suitable band gap for light absorption by controlling the crystal particle size thereof, and a method for manufacturing the same.
Specifically provided is a compound thin film solar cell characterized by being provided with at least a substrate (11), a back surface electrode (12) provided on the substrate (11), a first extraction electrode (13) provided on the back surface electrode (12), a light absorption layer (14) provided on the back surface electrode (12) and including a compound semiconductor thin film represented by Cu(Al1-x-yGaxIny)(Te1-a-bSeaSb)2 (where 0≤x≤1, 0≤y≤1, 0≤a≤1, 0≤b≤1, 0≤x+y≤1, 0≤a+b≤1), a buffer (15) provided on the light absorption layer (14), a transparent electrode layer (16) provided on the buffer layer (15), and a second extraction electrode (17) provided on the transparent electrode layer (16), and the mean crystal particle size of the compound semiconductor thin film is 1-100 nm.
Inventors:
NAKAGAWA NAOYUKI
SAKURADA SHINYA
SAKURADA SHINYA
Application Number:
PCT/JP2010/001581
Publication Date:
September 09, 2011
Filing Date:
March 05, 2010
Export Citation:
Assignee:
TOSHIBA KK (JP)
NAKAGAWA NAOYUKI
SAKURADA SHINYA
NAKAGAWA NAOYUKI
SAKURADA SHINYA
International Classes:
H01L31/04
Foreign References:
| JPH05263219A | 1993-10-12 | |||
| JP2000144377A | 2000-05-26 | |||
| JP2008192542A | 2008-08-21 | |||
| JP2008277422A | 2008-11-13 |
Attorney, Agent or Firm:
MATSUYAMA, Masayuki et al. (JP)
Mitsuyuki Matsuyama (JP)
Mitsuyuki Matsuyama (JP)
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Claims: