PCBM concentration dependent morphology of P3HT in composite P3HT/PCBM nanoparticles

    Authors

    Z. J. Hu;A. J. Gesquiere

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    Chem. Phys. Lett.

    Keywords

    CONJUGATED POLYMER NANOPARTICLES; SINGLE-MOLECULE SPECTROSCOPY; SOLAR-CELLS; ORGANIC NANOPARTICLES; PHOTOLUMINESCENCE; LUMINESCENCE; ORGANIZATION; BLENDS; FILMS; Chemistry, Physical; Physics, Atomic, Molecular & Chemical

    Abstract

    Minor changes in processing conditions and composition of blended conjugated polymer materials have led to sometimes unpredictable properties of resulting plastic optoelectronic devices due to the complex morphology of conjugated polymer materials. We report a Single Particle Spectroscopy study of composite poly-(3-hexylthiophene) (P3HT)/1-(3-Methoxycarbonylpropyl)-1-phenyl-[6.6]C-61 (PCBM) nanoparticles fabricated with varying doping levels of PCBM to investigate changes in morphology of P3HT with respect to blend composition. We find that this material system consists of crystalline nanodomains with two distinct morphologies that have characteristic optical signatures, and that exhibit a change in their relative abundance with changing PCBM dopant concentration in favor of the more densely packed crystal structure with higher PCBM concentrations. (C) 2009 Elsevier B.V. All rights reserved.

    Journal Title

    Chemical Physics Letters

    Volume

    476

    Issue/Number

    1-3

    Publication Date

    1-1-2009

    Document Type

    Article

    Language

    English

    First Page

    51

    Last Page

    55

    WOS Identifier

    WOS:000267470600011

    ISSN

    0009-2614

    Share

    COinS