Homoepitaxy of ZnO and MgZnO Films at 90 °c

Dirk Ehrentraut, Gregory K.L. Goh, Katsushi Fujii, Chin Chun Ooi, Le Hong Quang, Tsuguo Fukuda, Masataka Kano, Yuantao Zhang, Takashi Matsuoka

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The aqueous synthesis of uniform single crystalline homoepitaxial zinc oxide, ZnO, and magnesium zinc oxide, MgxZn1-xO, films under very low temperature conditions at T=90°C and ambient pressure has been explored. A maximum Mg content of 1 mol% was recorded by energy dispersive spectroscopy. The growth on the polar (0 0 0 1) and (0 0 0 1̄) faces resulted in films that are strongly different in their structural and optical quality as evidenced by high-resolution X-ray diffraction, secondary electron microscopy, and photoluminescence. This is a result of the chemistry and temperature of the solution dictating the stability range of growth-governing metastable species. The use of trisodium citrate, Na3C 6H5O7, yielded coalesced, mirror-like homoepitaxial films whereas adding magnesium nitrate hexahydrate, Mg(NO 3)2·6H2O, favors the growth of films with pronounced faceting.

Original languageEnglish
Pages (from-to)96-100
Number of pages5
JournalJournal of Solid State Chemistry
Volume214
DOIs
Publication statusPublished - 2014 Jun

Keywords

  • Chemical bath deposition
  • Homoepitaxy
  • Magnesium zinc oxide
  • Zinc oxide

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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