Growth and Characterization of Nickel Catalyzed Gallium Oxide Nanowires on Sapphire Substrate
| Authors | Sudheer Kumar, B. Srinivas Goud, R. Singh |
| Affiliations | Department of Physics, Indian Institute of Technology Delhi, Hauz Khas, 110016 New Delhi, India |
| Е-mail | sudheer83.iitr@gmail.com, rsingh@physics.iitd.ac.in |
| Issue | Volume 5, Year 2013, Number 2 |
| Dates | Received 15 February 2013; revised manuscript received 30 April 2013; published online 04 May 2013 |
| Citation | Sudheer Kumar, B. Srinivas Goud, R. Singh, J. Nano- Electron. Phys. 5 No 2, 02003 (2013) |
| DOI | |
| PACS Number(s) | 78.40.Fy, 78.67.Bf, 78.67.Uh |
| Keywords | Gallium oxide, Nanowires (9) , Nickel (7) , SEM (116) , XRD (95) . |
| Annotation | Beta gallium oxide (-Ga2O3) nanowires (NWs) were synthesized via chemical vapor deposition in argon atmosphere using gallium as a precursor and sapphire substrate coated with ultra thin film of nickel (Ni). In this report, we report the growth of -Ga2O3 NWs as a function of deposition time. The structure and morphology of grown NWs were characterized by X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS) and scanning electron microscopy (SEM). The results revealed that single crystal growth of the NWs and their crystallinity improved with the increase in the deposition time. The diameter of -Ga2O3 NWs varied in the range between 40-80 nm and their length was observed up to many micrometers. The optical property of NWs was determined using UV-visible spectrophotometer and the bandgap of -Ga2O3 NWs was found to be about 4.30 eV. |
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