Nonpolar light emitting diode with sharp near-ultraviolet emissions using hydrothermally grown ZnO on p-GaN

  • Kwang Hyeon Baik
  • , Hyonwoong Kim
  • , Jihyun Kim
  • , Sukkoo Jung
  • , Soohwan Jang

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Nonpolar n-ZnO/p-GaN heterojunction light emitting diode has been demonstrated with a-plane (11 2 ̄ 0) ZnO active layer grown by a facile low-cost solution growth method at low temperature of 90 °C. High quality nonpolar ZnO planar film without seed layer was directly formed on a-plane GaN template due to the anisotropic growth rates along the specific crystallographic directions. The turn on voltage of the device was as low as 3 V, and narrow stable UV-blue electroluminescence emissions with peak wavelength of 392 to 420 nm under various forward bias conditions at room temperature were observed.

    Original languageEnglish
    Article number091107
    JournalApplied Physics Letters
    Volume103
    Issue number9
    DOIs
    Publication statusPublished - 2013 Aug 26

    Bibliographical note

    Funding Information:
    This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2012R1A1B4002649).

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

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