Ternary polymer solar cell based on two donors and one acceptor for improving morphology and power conversion efficiency

Hyun Ah Um, Dae Hee Lee, Gi Eun Park, Min Ju Cho, Dong Hoon Choi

    Research output: Contribution to journalArticlepeer-review

    4 Citations (Scopus)

    Abstract

    We synthesized isoindigo-based two donor-acceptor (D-A) copolymers to optimize the morphology in ternary blend films with two p-type polymers and n-type phenyl-C61-butyric acid methyl ester (PC61BM). Compared to binary systems with a single copolymer and PC61BM, the ternary polymer solar cell with two copolymers and PC61BM showed highly enhanced power conversion efficiency of 5.13% with a high short circuit current of 13.23 mA cm−2. These results were supported by atomic force microscopy (AFM) and transmission electron microscopy (TEM) observations of the surface and internal morphology of the thin film, respectively.

    Original languageEnglish
    Pages (from-to)362-368
    Number of pages7
    JournalSynthetic Metals
    Volume220
    DOIs
    Publication statusPublished - 2016 Oct 1

    Bibliographical note

    Funding Information:
    This research was supported by National Research Foundation of Korea ( NRF2012R1A2A1A01008797 ) and by Key Research Institute Program ( NRF20100020209 ). We are grateful to Korea Basic Science Institute (KBSI) for allowing the use of their HRTEM instrument.

    Publisher Copyright:
    © 2016 Elsevier B.V.

    Keywords

    • Copolymer
    • Isoindigo
    • Morphology
    • Polymer blend
    • Polymer solar cell
    • Power conversion efficiency

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering
    • Metals and Alloys
    • Materials Chemistry

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