Synthesis and Characterization of ZnO Nanoparticles
| Authors | N. Singh1 , R.M. Mehra2, A. Kapoor1 |
| Affiliations | 1 Department of Electronic Science, University of Delhi south Campus, NewDelhi-110021, India 2 School of Engineering and Technology, Sharda University, Greater Noida-201306 Uttar Pradesh, India |
| Е-mail | Singhneetu1985@gmail.com |
| Issue | Volume 3, Year 2011, Number 1, Part 1 |
| Dates | Received 04 February 2011, in final form 17 March 2011, published online 23 March 2011 |
| Citation | N. Singh, R.M. Mehra, A. Kapoor, J. Nano- Electron. Phys. 3 No1, 132 (2011) |
| DOI | |
| PACS Number(s) | 61.72.Uj, 78.30.FS, 78.55.Et |
| Keywords | Synthesis (27) , ZnO (92) , Nanoparticles (70) . |
| Annotation |
In this paper, we report the comparison between ZnO nanoparticles prepared via two different routes; i) via sol-gel route and ii) by solid state reaction method. It was found that when prepared under the same ambient conditions viz temperature, pressure etc. and keeping all the parameters same viz precursors, molarity, solvent etc; the nanoparticles prepared via Sol-gel route were highly crystalline and had smaller crystallite size (~ 24 nm) as compared to the one prepared by Solid state reaction method (~ 37 nm). The crystallinity and the crystallite size were examined by XRD and TEM. Variation in the bandgap as a function of size of the particles was determined using the absorption spectra obtained by UV-Vis-NIR spectrophotometer. Photoluminescence (PL) was also recorded in the visible region for the two types of particles and results have been analysed. |
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List of References |
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