Machine and process for sequential multi-sublayer deposition of copper indium gallium diselenide compound semiconductors

A method of manufacture of CIGS photovoltaic cells and modules involves sequential deposition of copper indium gallium diselenide compounds in multiple thin sublayers to form a composite CIGS absorber layer of a desirable thickness greater than the thickness of each sublayer. In an embodiment, the m...

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Main Authors Nath, Prem, Basava, Venugopala R, Kalla, Ajay Kumar, Shevchuk, Peter Alex, Misra, Mohan S
Format Patent
LanguageEnglish
Published 20.09.2011
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Abstract A method of manufacture of CIGS photovoltaic cells and modules involves sequential deposition of copper indium gallium diselenide compounds in multiple thin sublayers to form a composite CIGS absorber layer of a desirable thickness greater than the thickness of each sublayer. In an embodiment, the method is adapted to roll-to-roll processing of CIGS PV cells. In an embodiment, the method is adapted to preparation of a CIGS absorber layer having graded composition through the layer. In a particular embodiment, the graded composition is enriched in copper at a base of the layer. In an embodiment, each CIGS sublayer is deposited by co-evaporation of copper, indium, gallium, and selenium which react in-situ to form CIGS.
AbstractList A method of manufacture of CIGS photovoltaic cells and modules involves sequential deposition of copper indium gallium diselenide compounds in multiple thin sublayers to form a composite CIGS absorber layer of a desirable thickness greater than the thickness of each sublayer. In an embodiment, the method is adapted to roll-to-roll processing of CIGS PV cells. In an embodiment, the method is adapted to preparation of a CIGS absorber layer having graded composition through the layer. In a particular embodiment, the graded composition is enriched in copper at a base of the layer. In an embodiment, each CIGS sublayer is deposited by co-evaporation of copper, indium, gallium, and selenium which react in-situ to form CIGS.
Author Kalla, Ajay Kumar
Shevchuk, Peter Alex
Nath, Prem
Misra, Mohan S
Basava, Venugopala R
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Snippet A method of manufacture of CIGS photovoltaic cells and modules involves sequential deposition of copper indium gallium diselenide compounds in multiple thin...
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Title Machine and process for sequential multi-sublayer deposition of copper indium gallium diselenide compound semiconductors
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