Free-standing ZnO nanorods and nanowalls by aqueous solution method

Dae Hee Kim, Sam Dong Lee, Kyoung Kook Kim, Gyeong Su Park, Ji Myon Lee, Sang Woo Kim

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

Large quantity of free-standing ZnO nanorods and nanowalls were synthesized at low temperature of below 100°C using zinc acetate, zinc nitrate hexahydrate, and hexamethylenetetramine by using a simple aqueous solution method. The general morphology of the grown ZnO nanostructures which include nanorods and nanowalls was strongly influenced by growth conditions. It was found that the grown ZnO nanorods are of a single-crystalline hexagonal structure and preferred c-axis growth orientation. ZnO nanorods were of better crystallinity than ZnO nanowalls, due to the higher growth temperature used to grow ZnO nanorods. Strong free exciton emission bands with relatively weak deep level emission were clearly observed from ZnO nanorods and nanowalls, indicating their good optical properties.

Original languageEnglish
Pages (from-to)4688-4691
Number of pages4
JournalJournal of Nanoscience and Nanotechnology
Volume8
Issue number9
DOIs
Publication statusPublished - 2008 Sept

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • General Chemistry
  • Biomedical Engineering
  • General Materials Science
  • Condensed Matter Physics

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