Method for manufacturing chalcopyrite thin-film solar cell

Details Method for manufacturing chalcopyrite thin-film solar cell Method for manufacturing chalcopyrite thin-film solar cell

2011-01-18

2011-01-18

McDonald, Rodney G (Department: 1724)

Chemistry: electrical and wave energy

Processes and products

Coating, forming or etching by sputtering

C204S192150, C204S192290, C136S243000, C136S252000, C136S256000, C136S260000, C136S262000, C136S264000, C136S265000

Reexamination Certificate

active

07871502

ABSTRACT:
A method for fabricating a chalcopyrite-type thin film solar cell includes a first step of forming onto a Mo electrode layer2a precursor including an In metal layer and a Cu—Ga alloy layer by sputtering, a second step of attaching an alkali-metal solution onto the precursor, a selenization step of subjecting the substrate1which has undergone both the first and the second steps to a selenization treatment, and a transparent electrode forming step of depositing an optically transparent conductive layer. As the alkali-metal solution, an aqueous solution of an alkali metal compound, such as sodium tetraborate, sodium sulfide, and sodium aluminum sulfate, can be used.

REFERENCES:
patent: 2005/0028861 (2005-02-01), Aoki et al.
patent: WO 03/069684 (2003-08-01), None

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