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Microwave assisted solution synthesis, structural, morphological, optical, electrical properties of tin oxide (SnO2) nanoparticles

R. ANITHA1, E. KUMAR2,* , S. C. VELLA DURAI3, M. VARGHEESE4

Affiliation

  1. Bharathiar University,Coimbatore, Tamilnadu, India; Sri S. Ramasamy Naidu Memorial College, Sattur, Virudhunagar, Tamilnadu, India
  2. Department of Physics, Tamil Nadu Open University, Chennai, Tamil Nadu, India
  3. Department of Physics, JP College of Arts and science, Agarakattu, Tenkasi, Tirunelveli, Tamilnadu, India
  4. PSN College of Engineering and Technology, Melathediyur, Tirunelveli, Tamilnadu, India

Abstract

Tin Oxide (SnO2) n-type controllable morphological structures and crystalline nanoparticles were synthesized under microwave-assisted solution method. The obtained SnO2 nanoparticles were analyzed by powder X-ray diffraction, Fourier transforms IR spectroscopy (FTIR), UV–vis spectra (UV), High-resolution transmission electron microscopy (HRTEM), and Impedance spectroscopy. The powder XRD results clearly showed that the crystalline phase of the as-synthesized SnO2 nanoparticles conformed to a tetragonal rutile structure and from the sharp line broadening of the XRD peak, the crystalline size was 10 - 21 nm. FTIR spectra of SnO2 show the occurrence of anti-symmetric vibration of O–Sn–O at 620 cm-1. Additionally, maximum absorption bands were observed in the room temperature UV-vis spectrum. From the HRTEM, the surface morphology of the prepared SnO2 shows a uniformly dispersed particle, which is spherical in form. The SAED (selected area electron diffraction) pattern confirmed the pure crystalline nature of SnO2. The AC conductivity studies showed an increase in AC conductivity value with the increase in frequency. The dielectric analysis of the prepared samples has been discussed using a dielectric constant..

Keywords

Absorption, Conductivity, Crystalline, Dielectric.

Submitted at: Sept. 30, 2020
Accepted at: Nov. 24, 2021

Citation

R. ANITHA, E. KUMAR, S. C. VELLA DURAI, M. VARGHEESE, Microwave assisted solution synthesis, structural, morphological, optical, electrical properties of tin oxide (SnO2) nanoparticles, Journal of Optoelectronics and Advanced Materials Vol. 23, Iss. 11-12, pp. 598-604 (2021)