Single-Molecule Spectroscopy and AFM Morphology Studies of a Diblock Copolymer Consisting of Poly(3-hexylthiophene) and Fullerene

    Authors

    Z. J. Hu; J. H. Zou; C. Deibel; A. J. Gesquiere;L. Zhai

    Comments

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    Abbreviated Journal Title

    Macromol. Chem. Phys.

    Keywords

    conjugated polymers; fullerenes; morphology; photovoltaics; poly(3-hexylthiophene); PHOTOINDUCED ELECTRON-TRANSFER; HETEROJUNCTION SOLAR-CELLS; POLYMER; PHOTOVOLTAIC CELLS; CONJUGATED POLYMER; BLOCK-COPOLYMERS; ENERGY-TRANSFER; PCBM CONCENTRATION; SELF-ORGANIZATION; CHARGE-TRANSPORT; POLYTHIOPHENE; Polymer Science

    Abstract

    A block copolymer containing P3HT and C(60) is synthesized and subjected to single-molecule spectroscopy (SMS) and AFM studies to investigate the impact of the C(60) on the P3HT chain conformation and the phase-separation behavior upon annealing, respectively. Both the SMS and the single-molecule polarization investigations indicate that the grafting of the C(60)-containing block to the P3HT moiety does not significantly change its conformational structure. AFM studies on thin films of the block copolymer indicate that they are stable with microphase separation, while blended films of the block-copolymer precursor (without C(60)) with PCBM undergo macroscale phase separation upon thermal annealing.

    Journal Title

    Macromolecular Chemistry and Physics

    Volume

    211

    Issue/Number

    22

    Publication Date

    1-1-2010

    Document Type

    Article

    Language

    English

    First Page

    2416

    Last Page

    2424

    WOS Identifier

    WOS:000284210600006

    ISSN

    1022-1352

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