Facile method for the synthesis of zinc- or magnesium-doped gallium nitride powders from gallium metal

Daisuke Tomida, Quanxi Bao, Makoto Saito, Kouhei Kurimoto, Kazunobu Kojima, Kun Kyo, Tohru Ishiguro, Shigefusa F. Chichibu

Research output: Contribution to journalArticlepeer-review

Abstract

We describe a facile method for synthesizing high-purity Zn-doped and Mg-doped GaN powders from Ga metal in supercritical ammonia at a moderate reaction temperature using ZnX2 and MgX2 (X = F, Cl, Br, or I) as combined mineralizers and doping agents. Successful doping of Zn or Mg into the GaN matrix was indicated by characteristic bands in the photoluminescence spectra of the crystals at 10 K. The results suggest that the halide ion plays an important role in the transformation of Ga metal to GaN powder.

Original languageEnglish
Article number126190
JournalJournal of Crystal Growth
Volume570
DOIs
Publication statusPublished - 2021 Sep 15

Keywords

  • A. Ammonothermal method
  • B. Magnesium halides
  • B. Powders
  • B1. Gallium compounds
  • B1. Halides
  • B1. Zinc compounds

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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