System for manufacturing complete Cu(In,Ga)Se2 solar cells in situ under vacuum

•A system for manufacturing Cu(In,Ga)Se2 solar cells under vacuum was developed.•All layers required in a complete solar cell can be deposited in situ.•A pulsed evaporation of Se procedure was used for the absorber layer growth.•The best efficiency obtained was 10.2% for the cell with CdS buffer lay...

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