METHOD FOR PREPARING CIGS INKS WITHOUT SURFACTANT
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United States of America Patent
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Issued Date -
Sep 8, 2011
app pub date -
Mar 3, 2010
filing date -
Mar 3, 2010
priority date (Note) -
Abandoned
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Abstract
A method for preparing a CIGS ink without a surfactant or a binder is provided. In accordance with the method of the present invention, an initial CIGS mixture powder is obtained by mixing two component powder, three component powder or four component powder of copper, indium, gallium, and selenium in predetermined proportions. Then additional selenide powder is added and mixed into the initial CIGS mixture powder to form a final CIGS mixture powder. Then, a certain proportion of solvent is added into the final CIGS mixture powder, and the mixture powder is then stirred to obtain a CIGS ink in a predetermined copper/indium/gallium/selenium ratio as desired.
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