Title:
SILVER CONDUCTIVE FILM AND PRODUCTION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2007/080997
Kind Code:
A1
Abstract:
A silver conductive film suitable for the rear-surface, electrode-side conductive
layer of a thin-film solar cell, and a production method thereof. Since the thin-film
solar cell, although higher in incident light utilization efficiency than a
bulk type solar cell, has a thin photoelectric conversion layer, it is difficult
to directly form a texture structure, for effectively utilizing an incident
light, on an incident surface, and that portion of a light that cannot be absorbed
by the photoelectric layer is reflected off the conductive layer to be returned
to the photoelectric layer. However, the problem is that there exists no such
a conductive film suitable for the above conductive layer as being low in resistance,
high in reflectance, and excellent in close contact with a substrate, and having
a texture structure. The above problem is solved by providing a silver conductive
film having a texture structure in which silver particles are sintered on a substrate,
a porosity of a film section is up to 3 pieces/μm2, and surface
roughness Ra is 10-100nm.
Inventors:
SATO, Kimitaka (Room 124, Seishinryo 1781-3,, Nitte, Honjo-sh, Saitama 02, 3670002, JP)
佐藤 王高 (〒02 埼玉県本庄市仁手１７８１－３ 清心寮１２４号室 Saitama, 3670002, JP)
HISAEDA, Yutaka (2-2-41-303, Keyaki Honjo-sh, Saitama 42, 3670042, JP)
久枝 穣 (〒42 埼玉県本庄市けや木２－２－４１－３０３ Saitama, 3670042, JP)
佐藤 王高 (〒02 埼玉県本庄市仁手１７８１－３ 清心寮１２４号室 Saitama, 3670002, JP)
HISAEDA, Yutaka (2-2-41-303, Keyaki Honjo-sh, Saitama 42, 3670042, JP)
久枝 穣 (〒42 埼玉県本庄市けや木２－２－４１－３０３ Saitama, 3670042, JP)
Application Number:
JP2007/050375
Publication Date:
July 19, 2007
Filing Date:
January 09, 2007
Export Citation:
Assignee:
DOWA ELECTRONICS MATERIALS CO., LTD. (14-1, Sotokanda 4-chome Chiyoda-k, Tokyo 21, 1010021, JP)
ＤＯＷＡエレクトロニクス株式会社 (〒21 東京都千代田区外神田４丁目１４番１号 Tokyo, 1010021, JP)
SATO, Kimitaka (Room 124, Seishinryo 1781-3,, Nitte, Honjo-sh, Saitama 02, 3670002, JP)
佐藤 王高 (〒02 埼玉県本庄市仁手１７８１－３ 清心寮１２４号室 Saitama, 3670002, JP)
HISAEDA, Yutaka (2-2-41-303, Keyaki Honjo-sh, Saitama 42, 3670042, JP)
ＤＯＷＡエレクトロニクス株式会社 (〒21 東京都千代田区外神田４丁目１４番１号 Tokyo, 1010021, JP)
SATO, Kimitaka (Room 124, Seishinryo 1781-3,, Nitte, Honjo-sh, Saitama 02, 3670002, JP)
佐藤 王高 (〒02 埼玉県本庄市仁手１７８１－３ 清心寮１２４号室 Saitama, 3670002, JP)
HISAEDA, Yutaka (2-2-41-303, Keyaki Honjo-sh, Saitama 42, 3670042, JP)
International Classes:
H01B5/14; H01B13/00; H01L31/04
Attorney, Agent or Firm:
WADA, Kenji (Room 601, Lions Mansion Ichigaya 8-10, Sumiyoshi-ch, Shinjuku-ku Tokyo 65, 1620065, JP)
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