Preparation and Characterization of Vanadium Pentoxide Using Spray Pyrolysis Technique
Mohamed, M., Bishay, S., Boshta, M. (2021). Preparation and Characterization of Vanadium Pentoxide Using Spray Pyrolysis Technique. EKB Journal Management System, 38(part 1 (Basic Sciences)), 58-70. doi: 10.21608/jsrs.2021.210657
Mai Adel Mohamed; Samiha T. Bishay; M. Boshta. "Preparation and Characterization of Vanadium Pentoxide Using Spray Pyrolysis Technique". EKB Journal Management System, 38, part 1 (Basic Sciences), 2021, 58-70. doi: 10.21608/jsrs.2021.210657
Mohamed, M., Bishay, S., Boshta, M. (2021). 'Preparation and Characterization of Vanadium Pentoxide Using Spray Pyrolysis Technique', EKB Journal Management System, 38(part 1 (Basic Sciences)), pp. 58-70. doi: 10.21608/jsrs.2021.210657
Mohamed, M., Bishay, S., Boshta, M. Preparation and Characterization of Vanadium Pentoxide Using Spray Pyrolysis Technique. EKB Journal Management System, 2021; 38(part 1 (Basic Sciences)): 58-70. doi: 10.21608/jsrs.2021.210657

Preparation and Characterization of Vanadium Pentoxide Using Spray Pyrolysis Technique

Journal of Scientific Research in Science
Article 4, Volume 38, part 1 (Basic Sciences), January 2021, Page 58-70  XML PDF (871.52 K)
Document Type: Original Article
DOI: 10.21608/jsrs.2021.210657
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Authors
Mai Adel Mohamed email 1; Samiha T. Bishay2; M. Boshta3
1Physics, faculty of girls, Ain shams university, Egypt, Giza
2Physics Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt.
3Solid State Physics Department, National Research Centre, 12311Dokki, Giza, Egypt.
Abstract
A chemical spray pyrolysis technique was used to deposit a vanadium pentoxide (V2O5) thin films on glass substrate with a deposition temperature ranged from 300°C to 500°C in step of 50°C. From ammonium meta vanadate aqua precursor solution molarity of (0.1 M) was used as a source of vanadium. The effect of deposition temperature on structure, morphological, electrical conductivity and optical properties wasanalyzedat constant preparation time, solution molarity and the distance between spray nozzle and substrate.X-ray diffraction patterns shown that an orthorhombic cubic structure withgrowth along (001) plane. With increasing the substrate temperature, the electrical conductivity was increased, and the scanning electron microscopy clarified that the crystallinity of V2O5 thin films was effectively modified. The optical results revealed that energy band gap of V2O5 films deposited at 400oC, 450oC and 500oC is 2.38 eV for direct allowed transition. Based on the observed results the V2O5 phase can be well controlled by altering the substrate temperature. All prepared thin films up to 400oC show transparency in both visible and near IR region.
Keywords
V2O5; XRD; Morphological; Optical; Electrical properties; Depositiontemperature; Crystallinity andgraingrowth
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