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Synthesis of ZnO nanowires by thermal decomposition of zinc acetate dihydrate
- Source :
-
Materials Chemistry & Physics . Jan2009, Vol. 113 Issue 1, p334-337. 4p. - Publication Year :
- 2009
-
Abstract
- Abstract: High-purity single crystal ZnO nanowires were synthesized by the thermal decomposition of zinc acetate dihydrate at 300°C in air for 3h without a catalyst. The zinc acetate dihydrate was characterized by thermogravimetric-differential scanning calorimetry and mass spectrometry (TG–DSC–MS) to determine the thermal decomposition and crystallization temperature. Results reveal that the ZnO nanowires were produced through a dehydration, vaporization/decomposition, and deposition/formation process, which differs from the common vapor–liquid–solid (VLS) mechanism. X-ray diffraction demonstrates that the ZnO nanowires have a wurtzite crystal structure, and scanning electron microscopy shows their diameter and length to be about 40nm and a few micrometers, respectively. High-resolution transmission electron microscopy reveals that the nanowires are of a single crystal, which grew in the [001] direction. In addition, photoluminescence spectra results of the as-grown ZnO nanowires suggest possible applications in ultraviolet emission devices. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 02540584
- Volume :
- 113
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Materials Chemistry & Physics
- Publication Type :
- Academic Journal
- Accession number :
- 35500591
- Full Text :
- https://doi.org/10.1016/j.matchemphys.2008.07.070