Title:
SOLAR CELL, METHOD FOR MANUFACTURING SAME, AND SOLAR CELL MODULE
Document Type and Number:
WIPO Patent Application WO/2014/097741
Kind Code:
A1
Abstract:
This solar cell has a collecting electrode (7) on one main surface of a photoelectric conversion section (50). The collecting electrode (7) sequentially includes a first conductive layer (71) and a second conductive layer (72) in this order from the photoelectric conversion section (50) side, and also includes an insulating layer (9) between the first conductive layer (71) and the second conductive layer (72), said insulating layer having an opening formed therein. The first conductive layer (71) is covered with the insulating layer (9). The first conductive layer (71) contains a low-melting point material, and a part of the second conductive layer (72) is electrically connected to the first conductive layer (71) via the opening in the insulating layer (9). A surface roughness (Ra2) of the second conductive layer is preferably 1.0-10.0 μm. The second conductive layer is preferably formed by means of a plating method. In a manufacture method of the present invention, in order to electrically connect the first conductive layer and the second conductive layer with each other, annealing of the first conductive layer by heating is preferably performed prior to forming the second conductive layer.
Inventors:
UTO TOSHIHIKO (JP)
ADACHI DAISUKE (JP)
ADACHI DAISUKE (JP)
Application Number:
PCT/JP2013/079014
Publication Date:
June 26, 2014
Filing Date:
October 25, 2013
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
H01L31/0224
Domestic Patent References:
| WO2011045287A1 | 2011-04-21 |
Foreign References:
| JP2009231840A | 2009-10-08 | |||
| JP2011199045A | 2011-10-06 |
Attorney, Agent or Firm:
SHINTAKU, Masato et al. (JP)
Masahito Shintaku (JP)
Masahito Shintaku (JP)
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