Simple technique for bulk quantity synthesis of ZnO tetrapod nanorods

V. A.L. Roy, A. B. Djurišić, Q. Li, S. J. Xu, H. F. Lui, C. Surya, J. Gao

Research output: Contribution to journalConference articlepeer-review

Abstract

In this work, we report a simple method for mass production of ZnO tetrapod nanorods. A mixture of Zn and graphite powders (ratio 2:1) was placed in a quartz tube. The quartz tube was placed in a horizontal tube furnace and heated up to 950°C. The tube was then removed from the furnace and quenched to room temperature. Fluffy products white in color were formed on the walls of the tube. Obtained products were characterized by X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and photoluminescence. SEM images showed tetrapod-like ZnO nanorods. The four tetrapod legs were approximately equal length, and the length of tetrapod legs was in the range ∼1-3 μm. We investigated influence of the growth temperature (in the range from 700°C to 1100°C) and Zn to catalyst ratio to the properties of obtained products. Fabrication in different atmospheres (air, argon, nitrogen, humid argon, and humid nitrogen) was also performed. The influence of growth conditions (temperature, atmosphere, and catalyst concentration) to the formation and properties of ZnO nanorods is discussed.

Original languageEnglish
Pages (from-to)51-58
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5219
DOIs
Publication statusPublished - Dec 1 2003
Externally publishedYes
EventNanotubes and Nanowires - San Diego, CA, United States
Duration: Aug 3 2003Aug 4 2003

Keywords

  • Photoluminescence
  • SEM
  • ZnO nanorods

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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