Effect of Heat Treatment on Band Gap of V2O5

Authors Rashi Nathawat1, Ashish K. Kumawat1, Satyapal S. Rathore1, Anoop K. Mukhopadhyay2, K. Kabra3

1Functional Ceramics & Smart Materials Lab, Department of Physics, Manipal University Jaipur, Jaipur 303007, India

2Department of Physics, Manipal University Jaipur, Jaipur-303007, India

3Department of Physics, University of Kota, Rajasthan, India

Е-mail rashi.nathawat@gmail.com
Issue Volume 13, Year 2021, Number 1
Dates Received 09 January 2021; revised manuscript received 12 February 2021; published online 25 February 2021
Citation Rashi Nathawat, Ashish K. Kumawat, et al., J. Nano- Electron. Phys. 13 No 1, 01030 (2021)
DOI https://doi.org/10.21272/jnep.13(1).01030
PACS Number(s) 70.40.Fy, 61.05.C –, 68.37. – d
Keywords Vanadium Oxide (2) , Multifunctional, Band gap tuning, Microstructure (21) , Heat treatment (2) .

The most stable oxide of the vanadium oxide family is V2O5. A lot of research effort is focused on it because it has a multitude of functional applications. Here we report on how the heat treatment (600°C, 5 h, air) affects the microstructure and hence, the band gap of V2O5. The V2O5 powders, initially obtained by simple thermal dissociation (500 °C, 3 h, air) of ammonium metavanadate, followed by heat treatment of pellets; were studied. The structural and optical studies performed using X-ray diffraction (XRD), FESEM and UV-Vis techniques, provide uniquely interesting results which indicate the possibility of band gap tuning by controlling the microstructure.

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