Optical, structural and electrical properties of AgSbO3 nanotips prepared by thermal evaporation technique for thermoelectric effect applications. (2021)

• Record Type: Journal Article
• Authors: Mohamed Anwar, P.; Muruganantham, S.; Karunanithy, M.; Benhaliliba, M.; Ayeshamariam, A.; Jayachandran, M.; Kaviyarasu, K.
• Is Part Of: Materials today. Volume 36:Part 2(2021)
• Page Start: 492
• Page End: 498
• Publication Date: 2021
• Subjects: AgSbO3 -- Nanotips -- FTIR spectroscopy -- Thermal evaporation technique -- Pseudo first order -- Thermoelectric effect; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2020.05.148
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: The silver antimonate (AgSbO3 ) nanotips prepared by thermal evaporation technique at a constant substrate temperature with molybdenum boat for coating. It was characterized by X-ray diffraction pattern and revealed a polycrystalline structure. The crystallite size was nearly 56 nm, using optical studies band gap values were measured by Taue plot its value comprises between 3.0 eV and 4.2 eV and absorption coefficient is decreasing within UV range. In oder to understand the Pseudo first (PFO) and second (PSO) order of kinetic of AgSbO3 crystal are studied. Thermoelectric measurement shows a decay of thermopower effect with an increase in temperature. AFM scanned pictures show texture which looks like nanotips growing along z axis. Pseudo first order and second order models for kinetic data fitting in order to determine the rate – limiting step was analyzed for our sample.