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Urchin-like ZnO nanostructures: Synthesis, characterization and optical properties
- Source :
- Materials Letters. 63:1242-1244
- Publication Year :
- 2009
- Publisher :
- Elsevier BV, 2009.
-
Abstract
- Urchin-like ZnO nanostructures have been synthesized by a two-step thermal evaporation method. The product was characterized with scanning electron microscopy, X-ray powder diffraction, transmission electron microscopy, and spectrofluorometry. The results of characterization revealed that the urchin-like ZnO nanostructure consists of a spherical metallic Zn core and wurtzite ZnO nanowires growing on the surface of the ZnO buffer which covers the Zn core and the growth directions of wurtzite ZnO nanowires are along . According to the analysis on these results, a possible two-step growth mechanism was proposed to explain the formation of the urchin-like ZnO nanostructures. The fluorescence-emission mechanisms were also discussed.
- Subjects :
- Materials science
Nanostructure
Scanning electron microscope
Mechanical Engineering
Nanotechnology
Condensed Matter Physics
Characterization (materials science)
Nanomaterials
Mechanics of Materials
Transmission electron microscopy
General Materials Science
Luminescence
Powder diffraction
Wurtzite crystal structure
Subjects
Details
- ISSN :
- 0167577X
- Volume :
- 63
- Database :
- OpenAIRE
- Journal :
- Materials Letters
- Accession number :
- edsair.doi...........a5fc7817b3dfd69e00880abe20175e69