Fourier-transform infrared spectroscopy of hopping oscillations of electrons in vanadium oxide nanotubes

Min Ha Oh, Hyo Jung Kim, Kyu Won Lee, Cheol Eui Lee

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    3 Citations (Scopus)

    Abstract

    We have employed Fourier-transform infrared spectroscopy in order to study the phase transitions and charge dynamics in vanadium oxide nanotubes with alternating organic and inorganic layers. The structural phase transitions accompanied by conformational changes in the organic layer were identified. Besides, a phase transition around 343 K from an insulator phase to a metal-like one that arises from electron delocalization was observed in the inorganic layers, manifesting an electron hopping oscillation between the V4+ and V5+ sites.

    Original languageEnglish
    Article number113105
    JournalApplied Physics Letters
    Volume102
    Issue number11
    DOIs
    Publication statusPublished - 2013 Mar 18

    Bibliographical note

    Funding Information:
    This work was supported by the National Research Foundation of Korea (NRL Program 2012-0006259, Cyclotron Users Program 2012029495, and Project No. 2012034779). The measurements at the Korean Basic Science Institute (KBSI) are gratefully acknowledged.

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

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