Surface structures of (0001)/(0001) of ZnO single crystals

Hideyuki Maki, N. Ichinose, S. Sekiguchi, N. Ohashi, H. Haneda, J. Tanaka

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The wurtzite-type ZnO is a polar crystal, and its ideal (0001) surface is terminated by Zn ions while the (000 1 ) surface is terminated by oxygen ions. The surface structures of ZnO single crystals were evaluated by atomic force microscopy (AFM) and coaxial impact-collision ion scattering spectroscopy (CAICISS). The ZnO crystals were etched in HNOs and HC1 solutions, or annealed in Oi gas and vacuum at 800 °C and 950 °C to obtain flat surfaces in atomic scale. When etched in solutions and annealed in vacuum, the samples had rough O-terminated surfaces. The Znterminated and O-terminated surfaces had clear step/terrace structures only when treated in O2 gas at 950 °C for 3 hours. The CAICISS spectra were successfully analyzed on the basis of the step/terrace structure with the steps of half c-axis in height.

Original languageEnglish
Pages (from-to)109-112
Number of pages4
JournalKey Engineering Materials
Volume169-170
Publication statusPublished - 1999
Externally publishedYes

Fingerprint

Surface structure
Single crystals
Ions
Gases
Spectroscopy
Vacuum
Scattering
Crystals
Atomic force microscopy
Oxygen

Keywords

  • Atomic force microscopy
  • Coaxial impact-collision ion scattering spectroscopy
  • Polar crystal
  • Surface structure
  • Zinc oxide

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemical Engineering (miscellaneous)

Cite this

Maki, H., Ichinose, N., Sekiguchi, S., Ohashi, N., Haneda, H., & Tanaka, J. (1999). Surface structures of (0001)/(0001) of ZnO single crystals. Key Engineering Materials, 169-170, 109-112.

Surface structures of (0001)/(0001) of ZnO single crystals. / Maki, Hideyuki; Ichinose, N.; Sekiguchi, S.; Ohashi, N.; Haneda, H.; Tanaka, J.

In: Key Engineering Materials, Vol. 169-170, 1999, p. 109-112.

Research output: Contribution to journalArticle

Maki, H, Ichinose, N, Sekiguchi, S, Ohashi, N, Haneda, H & Tanaka, J 1999, 'Surface structures of (0001)/(0001) of ZnO single crystals', Key Engineering Materials, vol. 169-170, pp. 109-112.
Maki H, Ichinose N, Sekiguchi S, Ohashi N, Haneda H, Tanaka J. Surface structures of (0001)/(0001) of ZnO single crystals. Key Engineering Materials. 1999;169-170:109-112.
Maki, Hideyuki ; Ichinose, N. ; Sekiguchi, S. ; Ohashi, N. ; Haneda, H. ; Tanaka, J. / Surface structures of (0001)/(0001) of ZnO single crystals. In: Key Engineering Materials. 1999 ; Vol. 169-170. pp. 109-112.
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