Journal
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
Volume 98, Issue 3, Pages 491-497Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00339-009-5478-6
Keywords
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Funding
- NSFC [10804002, 90606023]
- MOST [2007CB936202, 2009CB623703]
- Ministry of Education, P.R. China
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Tube brush-like ZnO nanostructures were synthesized by a simple chemical vapor deposition method with Zn and ZnO as precursors. These special ZnO nanostructures were characterized by Scanning Electron Microscope, Energy Dispersive X-ray Spectroscopy, High Resolution Transmission Electron Microscope and Cathodoluminescence (CL) techniques. Empty backbones or comb ribbons backbones were found inside the tube brush-like ZnO structures and fuzzy ZnO nanowires outside. Outside ZnO nanowires grow along the c axis and show green CL emission. The growth mechanism of the hierarchical ZnO nanostructures was investigated by a series of experiments at different growth temperatures and different duration times, and a secondary growth mechanism has been proposed and discussed.
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