Hydrothermal growth of single crystal ZnO nanorods on surface-modified graphite

Trilochan Sahoo, Lee Woon Jang, Dae Woo Jeon, Yeon Tae Yu, In Hwan Lee

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

ZnO nanostructures were hydrothermally grown at 90°C on bare and surface-modified graphite. Thermodynamically active sites along the grain boundaries on the graphite surface initiated scattered nucleation of ZnO, leading to the formation of a bunched structure. The uniformity of nucleation and the size distribution of nanorods were controlled by modifying the graphite surface with a seed layer. The seed layer was created on the graphite rod by coating it with ethanolic solution of zinc acetate followed by baking at 300°C. The preformed particles on this layer acted as nucleation center for subsequent growth of ZnO nanorods. The resulting ZnO nanorods were vertically well-aligned single crystals, exhibiting strong band edge luminescence.

Original languageEnglish
Pages (from-to)715-718
Number of pages4
JournalElectronic Materials Letters
Volume9
Issue number6
DOIs
Publication statusPublished - 2013 Nov
Externally publishedYes

Keywords

  • ZnO
  • hydrothermal growth
  • nanorod
  • surface-modified graphite

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

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