Electron mobility in poly(3-hexylthiophene) enhanced by gamma-ray irradiation

M. S. Kim, J. H. Han, Cheol Eui Lee

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)

    Abstract

    Gamma-ray irradiation effects on the photoresponsive thin-film devices based on the regioregular poly(3-hexylthiophene) (RR-P3HT) conjugated polymer have been studied by means of atomic force microscopy, UV-vis absorption, photoluminescence (PL), and time-of-flight measurements. As a result, increased light absorption in the red region and PL quenching induced by the irradiation were observed. Besides, enhancement of the electron/hole mobilities, attributable to improved ordering or increased nanodomain size of the P3HT thin films, was revealed.

    Original languageEnglish
    Pages (from-to)25-28
    Number of pages4
    JournalCurrent Applied Physics
    Volume15
    Issue number1
    DOIs
    Publication statusPublished - 2015 Feb

    Bibliographical note

    Funding Information:
    This work was supported by the National Research Foundation of Korea (Proton Users Program Project No. 2014M2B2A4030835, 2014028954, and NRF-2010-0027963). The measurements at the Korean Basic Science Institute (KBSI) are acknowledged.

    Publisher Copyright:
    © 2014 Elsevier B.V. All rights reserved.

    Keywords

    • Electron and hole mobility
    • Gamma-ray irradiation effects
    • Regioregular P3HT conjugated polymer

    ASJC Scopus subject areas

    • General Materials Science
    • General Physics and Astronomy

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