INFLUENCE OF ANNEALING DURATION ON THE GROWTH OF V2O5 NANORODS SYNTHESIZED BY SPRAY PYROLYSIS TECHNIQUE

N. M. Abd-Alghafour, Naser M. Ahmed, Z. Hassan, D. Abubakar and M. Bououdina
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N. M. Abd-Alghafour: Iraqi Ministry of Education, Anbar, Iraq†Institute of Nano Optoelectronics Research and Technology (INOR), Universiti Sains Malaysia, 11800 Penang, Malaysia
Naser M. Ahmed: #x2020;Institute of Nano Optoelectronics Research and Technology (INOR), Universiti Sains Malaysia, 11800 Penang, Malaysia
Z. Hassan: #x2020;Institute of Nano Optoelectronics Research and Technology (INOR), Universiti Sains Malaysia, 11800 Penang, Malaysia
D. Abubakar: #x2020;Institute of Nano Optoelectronics Research and Technology (INOR), Universiti Sains Malaysia, 11800 Penang, Malaysia
M. Bououdina: #x2021;Department of Physics, College of Science, University of Bahrain, P. O. Box 32038, Bahrain

Surface Review and Letters (SRL), 2016, vol. 23, issue 06, 1-9

Abstract: This paper deals with the investigation of annealing effects on the structural, morphological and optical properties of V2O5 nanorods (NRs) grown on the glass substrates by using chemical spray pyrolysis technique. The as-prepared samples were annealed at 500∘ for 40, 60 and 120 min in a quartz tube furnace. The high resolution X-ray diffraction (XRD) analysis revealed V2O5 NRs with preferred orientation along (001) plane. The crystallite size of the V2O5 NRs was increased by increasing the annealing duration. The morphological observations using field emission scanning electron microscope (FESEM) displayed NRs structures whose diameter and length were found to increase with increase of the annealing duration. The transmission electron microscopy (TEM) analysis confirmed the orthorhombic structures of the NRs. The AFM measurements indicated an increase of the average surface roughness by increasing the annealing time. The Raman spectroscopy revealed V–O–V phonon mode in the NRs annealed for 120 min. The optical bandgap was found in the range 2.6–2.58eV and observed to decrease with various duration annealed.

Keywords: Nanorods; spray pyrolysis; XRD diffraction; optical properties; Raman spectroscopy; atomic force microscopy (search for similar items in EconPapers)
Date: 2016
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DOI: 10.1142/S0218625X16500578

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