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Research unit
SFOE
Project number
152404
Project title
Flexible CIGS solar cells on large area polymer foils with in-line deposition methods and application of alternative back contacts

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Final report
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Final report
(English)

This project progress report summarises the work performed within this project and also in synergy with other projects that helped to make a significant contribution to the development of Cu(In,Ga)Se2 (CIGS) thin film solar cells on flexible substrates such as polymer foils. The project aim was to learn about the up-scaling issues and demonstrate our ability for processing of layers on large area (up to 30 x 30 cm2) polyimide foils for flexible CIGS solar cells. The solar cell processing on large area sub-strate required deposition of Mo back contact by dc sputtering and and ZnO/ZnO:Al front contact by rf sputtering on in-line moving substrate. For deposition of CIGS layer on in-line moving substrate modi-fications were essential for obtaining uniform and controlled evaporation fluxes of In, Ga, Cu, Se ele-ments evaporated from linear evaporation sources.

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