Electrical conduction and photoresponses of gamma-ray-irradiated single-stranded DNA/single-walled carbon nanotube composite systems

W. Hong, E. M. Lee, D. W. Kim, Cheol Eui Lee

    Research output: Contribution to journalArticlepeer-review

    1 Citation (Scopus)

    Abstract

    Effects of gamma-ray irradiation on the electrical conductivity and photoresponse have been studied for single-stranded DNA (ssDNA)/single-walled carbon nanotube (SWNT) composite films. The temperature-dependent electrical conductivity of the ssDNA/SWNT composite films, well described by a fluctuation-induced tunneling model, indicated modification of the barrier for thermally activated conduction by the gamma-ray irradiation. Besides, the photoresponse measurements indicated modified photoexcited charge carrier generation and oxygen photodesorption in the composite systems due to the gamma-ray irradiation.

    Original languageEnglish
    Pages (from-to)103-105
    Number of pages3
    JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
    Volume349
    DOIs
    Publication statusPublished - 2015 Apr 15

    Bibliographical note

    Publisher Copyright:
    © 2015 Elsevier B.V. All rights reserved.

    Keywords

    • Charge transport and photoresponses
    • Gamma-ray irradiation effect
    • Single-stranded DNA/single-walled carbon
    • nanotube composite film

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics
    • Instrumentation

    Fingerprint

    Dive into the research topics of 'Electrical conduction and photoresponses of gamma-ray-irradiated single-stranded DNA/single-walled carbon nanotube composite systems'. Together they form a unique fingerprint.

    Cite this