Fine luminescent patterning on ZnO nanowires and films using focused electron-beam irradiation

Dong Il Kim, Young Ki Hong, Suk Ho Lee, Jeongyong Kim, Jinsoo Joo

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    ZnO thin films and nanowires (NWs) were precisely treated by focused electron-beam (E-beam) irradiation with a line width between 200 nm and 3 μm. For both ZnO films and NWs, an increased green emission was clearly observed for the E-beam-treated parts. Using a high-resolution laser confocal microscope, the photoluminescence intensities for E-beam-treated ZnO structures increased with increasing dose 1.0 × 1017-1.0 × 1018 electrons/cm2. The resistivity of a single ZnO NW increased from 56 to 1800 Ω cm after the E-beam treatment. From the results for the annealed ZnO thin films, we analyzed that the variations in PL and resistivity were due to the formation of vacancies upon focused E-beam irradiation.

    Original languageEnglish
    Pages (from-to)1228-1233
    Number of pages6
    JournalCurrent Applied Physics
    Volume14
    Issue number9
    DOIs
    Publication statusPublished - 2014 Sept

    Bibliographical note

    Funding Information:
    We acknowledge the financial support from National Research Foundation (NRF) grants funded by the Korean Government (The Ministry of Science, ICT and Future Planning (MSIP)) (No. 2012R1A2A2A01045102 and No. 2012R1A1A2A10043220 ). In addition, J. Kim would like to acknowledge financial support received from the Institute for Basic Science (IBS) (EM 1304 ) in Korea.

    Copyright:
    Copyright 2020 Elsevier B.V., All rights reserved.

    Keywords

    • Electron irradiation
    • Focused electron beam
    • Nanowire
    • Photoluminescence
    • ZnO

    ASJC Scopus subject areas

    • General Materials Science
    • General Physics and Astronomy

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