Roll-to-roll processed polymer tandem solar cells partially processed from water

Thue Trofod Larsen-Olsen, Thomas Rieks Andersen, Birgitta Andreasen, Arvid P.L. Böttiger, Eva Bundgaard, Kion Norrman, Jens Wenzel Andreasen, Mikkel Jørgensen, Frederik C Krebs

    Research output: Contribution to journalConference articleResearchpeer-review


    Large area polymer tandem solar cells completely processed using roll-to-roll (R2R) coating and printing techniques are demonstrated. A stable tandem structure was achieved by the use of orthogonal ink solvents for the coating of all layers, including both active layers. Processing solvents included water, alcohols and chlorobenzene. Open-circuit voltages close to the expected sum of sub cell voltages were achieved, while the overall efficiency of the tandem cells was found to be limited by the low yielding back cell, which was processed from water based ink. Many of the challenges associated with upscaling the multilayer tandem cells were identified giving valuable information for future experiments and development.
    Original languageEnglish
    JournalSolar Energy Materials & Solar Cells
    Pages (from-to)43-49
    Publication statusPublished - 2012
    EventGlobal Organic PhotoVoltaic Conference 2011 - Zhejiang University, Hangzhou, China
    Duration: 10 Oct 201112 Oct 2011


    ConferenceGlobal Organic PhotoVoltaic Conference 2011
    LocationZhejiang University


    • Polymer solar cells

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