SOLAR CELL SUBSTRATE, METHOD FOR MANUFACTURING SAME, AND SOLAR CELL USING SAME

Title:

SOLAR CELL SUBSTRATE, METHOD FOR MANUFACTURING SAME, AND SOLAR CELL USING SAME

Document Type and Number:

WIPO Patent Application WO/2012/169845

Kind Code:

A3

Abstract:

One aspect of the present invention is a solar cell substrate, comprising: a lower substrate; and a lower electrode that is formed on the upper part of said lower substrate, wherein a metal diffusion-preventing film having at least one or two or more metal layers is included between said lower substrate and said lower electrode, and if two or more metal layers are formed, the metal layers adjoining each other can be different metals. Additionally, a solar cell, which is another aspect of the present invention, comprises: a lower substrate; and a lower electrode that is formed on the upper part of said lower substrate, wherein a metal diffusion-preventing film having at least one or two or more metal layers is included between said lower substrate and said lower electrode, and if two or more metal layers are formed, the metal layers adjoining each other comprise solar cell substrates which are of different metals; p-type light absorption layers formed on said solar cell substrates; n-type buffer layers formed on said light absorption layers; transparent windows formed on said buffer layers; and upper electrodes formed on said transparent windows.

Inventors:

KIM KYOUNG-BO (KR)
PARK YOUNG-JUN (KR)
BAEK JE-HOON (KR)
KIM JONG-SANG (KR)
KIM YOUNG-GEUN (KR)

Application Number:

PCT/KR2012/004572

Publication Date:

March 07, 2013

Filing Date:

June 08, 2012

Export Citation:

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Assignee:

POSCO (KR)
KIM KYOUNG-BO (KR)
PARK YOUNG-JUN (KR)
BAEK JE-HOON (KR)
KIM JONG-SANG (KR)
KIM YOUNG-GEUN (KR)

International Classes:

H01L31/042; H01L31/0749; H01L31/18

Foreign References:

KR20100029414A	2010-03-17
KR20110038391A	2011-04-14
KR100743923B1	2007-07-30
KR20090123645A	2009-12-02

Other References: