Nanoscale morphological design of ZnO crystals grown in aqueous solutions

Tetsuo Kawano, Hiroaki Imai

Research output: Contribution to journalReview articlepeer-review

27 Citations (Scopus)

Abstract

In the past decade, a wide variety of ZnO crystals were prepared through wet chemical processing. However, the fundamentals of the nanoscale morphological variation of ZnO crystals on the crystal growth in aqueous solution systems have not been sufficiently studied. This paper is a review of the various morphologies of ZnO crystals in relation to the preparation conditions, including the source chemicals, the role of seeds or substrates, and the presence of organic molecules as a shape modifier. Versatile guidelines for controlling the nanoscaled morphologies of ZnO crystals in the forms of individual particles and films as assembly of nanocrystals are proposed on the basis of the classification of typical phenomena. The essential parameters, such as the growth rate, growth site, and growth direction of ZnO crystals, are successfully tuned by varying the degree of supersaturation, the presence of seeds or substrates, and the addition of specific organic molecules, respectively.

Original languageEnglish
Pages (from-to)969-976
Number of pages8
JournalJournal of the Ceramic Society of Japan
Volume118
Issue number1383
DOIs
Publication statusPublished - 2010 Nov

Keywords

  • Chemical bath deposition (CBD)
  • Crystal growth
  • Crystallization
  • Epitaxial growth
  • Film
  • Liquid phase deposition (LPD)
  • Morphology
  • Nanocrystal
  • Nucleation
  • Particle
  • Soft solution process
  • Supersaturation
  • Wet chemical processing
  • Zinc oxide

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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