Low band gap polymers for organic photovoltaics

Eva Bundgaard, Frederik C Krebs

    Research output: Contribution to journalReviewResearchpeer-review

    Abstract

    Low band gap polymer materials and their application in organic photovoltaics (OPV) are reviewed. We detail the synthetic approaches to low band gap polymer materials starting from the early methodologies employing quinoid homopolymer structures to the current state of the art that relies on alternating copolymers of donor and acceptor groups where strategies for band gap design are possible. Current challenges for OPV such as chemical stability and energy level alignment are discussed. We finally provide a compilation of the most studied classes of low band gap materials and the results obtained in photovoltaic applications and give a tabular overview of rarely applied materials.
    Original languageEnglish
    JournalSolar Energy Materials & Solar Cells
    Volume91
    Issue number11
    Pages (from-to)954-985
    ISSN0927-0248
    DOIs
    Publication statusPublished - 2007

    Keywords

    • low band gap polymers
    • synthesis
    • organic photovoltaics (OPV)

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