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ghafouri, Vahid, Shariati, Mohsen, Ebrahimzad, Akbar. (1392). Optical Properties of ZnO Nanowires and Nanorods Synthesized by Two Step Oxidation Process. , 46(1), 19-24. doi: 10.7508/jufgnsm.2013.01.003
Vahid ghafouri; Mohsen Shariati; Akbar Ebrahimzad. "Optical Properties of ZnO Nanowires and Nanorods Synthesized by Two Step Oxidation Process". , 46, 1, 1392, 19-24. doi: 10.7508/jufgnsm.2013.01.003
ghafouri, Vahid, Shariati, Mohsen, Ebrahimzad, Akbar. (1392). 'Optical Properties of ZnO Nanowires and Nanorods Synthesized by Two Step Oxidation Process', , 46(1), pp. 19-24. doi: 10.7508/jufgnsm.2013.01.003
ghafouri, Vahid, Shariati, Mohsen, Ebrahimzad, Akbar. Optical Properties of ZnO Nanowires and Nanorods Synthesized by Two Step Oxidation Process. , 1392; 46(1): 19-24. doi: 10.7508/jufgnsm.2013.01.003

Optical Properties of ZnO Nanowires and Nanorods Synthesized by Two Step Oxidation Process

Journal of Ultrafine Grained and Nanostructured Materials
مقاله 3، دوره 46، شماره 1، اسفند 2013، صفحه 19-24    اصل مقاله (498.54 K)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.7508/jufgnsm.2013.01.003
نویسندگان
Vahid ghafouri* 1؛ Mohsen Shariati1؛ Akbar Ebrahimzad2
1Research Institute of Applied Sciences (ACECR), Shahid Beheshti University, Physics faculty member
2Research Institute of Applied Sciences (ACECR), Shahid Beheshti University
چکیده
ZnO nanowires with a diameter of 70 nm and nanorods with a diameter in the range of 100-150 nm and two micrometer in length were grown on glass substrates by resistive evaporation method and applying a two step oxidation process at low temperatures, without using any catalyst, template or buffer layer. XRD pattern of these nanostructures indicated a good crystallinity property with wurtzite hexagonal structure. Photoluminescence measurement revealed three band emissions; one sharp strong peak in the UV region and two weaker peaks in the visible region, indicate good optical properties of nanorods synthesized by this method. Heat treatment in oxygen-rich atmosphere results to decrease of deep-level emission intensity in the PL spectra. The relatively high intensity of UV emission implies that this approach is a simple and promising method for fabricating ZnO nanorods in order to be used in optoelectronic devices especially in the UV range of the spectrum.
کلیدواژه‌ها
ZnO Nanowires؛ Nanorod؛ Resistive Evaporation؛ oxidation؛ Photoluminescence
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