Controlling the hydrothermal growth and the properties of ZnO nanorod arrays by pre-treating the seed layer

Y. Yin, Y. Sun*, M. Yu, X. Liu, B. Yang, D. Liu, S. Liu, W. Cao, M. N R Ashfold

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

14 Citations (Scopus)
239 Downloads (Pure)

Abstract

Dense arrays of ultra-thin zinc oxide (ZnO) nanorods have been fabricated on c-oriented ZnO seed layers by hydrothermal growth, with particular emphasis on exploring the effects of annealing or plasma pre-treating the seed layer. Such pre-treatments influence the density, size and surface defects of particles within the nucleating seed layer, which impacts on the subsequent nanorod growth via sequential reaction with OH- and Zn2+ species. Oxygen-rich defects at the seed layer surface are deduced to have particular impact - affecting both the c-axis growth rate and the photoluminescence properties of the as-grown nanorods.

Original languageEnglish
Pages (from-to)44452-44456
Number of pages5
JournalRSC Advances
Volume4
Issue number84
Early online date8 Sep 2014
DOIs
Publication statusPublished - Sep 2014

Keywords

  • MORPHOLOGY
  • NANOWIRES
  • NANOSTRUCTURES
  • MECHANISMS
  • IMPACT

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