An alternating D-A(1)-D-A(2) copolymer containing two electron-deficient moieties for efficient polymer solar cells.

Wenjun Sun, Zaifei Ma, Dongfeng Dang, Weiguo Zhu, Mats R. Andersson, Fengling Zhang, Ergang Wang

    Research output: Contribution to journalArticlepeer-review

    62 Citations (Scopus)

    Abstract

    Unlike normal donor-acceptor (D-A) polymers containing only one electron-deficient segment in their repeating unit, the incorporation of two electron-deficient moieties with different absorption behaviors, forming a D-A1-D-A2 internal structure in the alternating copolymer, showed a broader absorption spectrum than its constituent parts and enhanced photovoltaic performance. This work is anticipated to open the door to the design of new low bandgap polymers with a broader absorption range for efficient polymer solar cells.

    Original languageEnglish
    Pages (from-to)11141-11144
    Number of pages4
    JournalJournal of Materials Chemistry A
    Volume1
    Issue number37
    DOIs
    Publication statusPublished - 7 Oct 2013

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