Lateral arrays of vertical ZnO nanowalls on a periodically polarity-inverted ZnO template

Sang Hyun Lee, Tsutomu Minegishi, Jun Seok Ha, Jin Sub Park, Hyo Jong Lee, Hyun Jung Lee, Hitoshi Shiku, Tomokazu Matsue, Soon Ku Hong, Heonsu Jeon, Takafumi Yao

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Well aligned ZnO nanowall arrays with submicron pitch were grown on a periodically polarity-inverted ZnO template using a carbothermal reduction process. Under the conditions of a highly dense Au catalyst for increasing nucleation sites, ZnO nanowalls with a thickness of 126 10nm, an average height of 3.4νm, and a length of about 10mm were formed on the template. The nanowalls were only grown on a Zn-polar surface due to a different growth mode with an O-polar surface. The results of x-ray diffraction and photoluminescence (PL) measurements revealed a single crystalline, vertical alignment on the template, and a large surface to volume ratio of the ZnO nanowalls.

Original languageEnglish
Article number235304
JournalNanotechnology
Volume20
Issue number23
DOIs
Publication statusPublished - 2009 Jun 29

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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