Affiliations 

  • 1 Nanotechnology & Catalysis Research Centre, University of Malaya, Kuala Lumpur 50603, Malaysia
  • 2 Department of Physics, National Defence University of Malaysia, 57000, Malaysia
  • 3 Department of Chemistry, Faculty of Science and Arts, King Abdulaziz University, Rabigh Campus, 21911 Rabigh, Saudi Arabia
  • 4 Department of Physics, Bangladesh University of Engineering & Technology, Dhaka 1000, Bangladesh
  • 5 Department of Physics, Sathyabama Institute of Science and Technology, Chennai 600119, Tamil Nadu, India
  • 6 Department of Basic Sciences and Humanities, Don Bosco Institute of Technology, Ka (W), Mumbai 400070, India
J Nanosci Nanotechnol, 2019 Nov 01;19(11):7139-7148.
PMID: 31039868 DOI: 10.1166/jnn.2019.16666

Abstract

In this work, a simple, co-precipitation technique was used to prepare un-doped, pure tin oxide (SnO₂). As synthesized SnO₂ nanoparticles were doped with Cu2+ ions. Detailed characterization was carried out to observe the crystalline phase, morphological features and chemical constituents with opto-electrical and magnetic properties of the synthesized nanoparticles (NPs). X-ray diffraction analysis showed the existence of crystalline, tetragonal structure of SnO₂. Both the sample synthesized here showed different crystalline morphology. The band gap energy (Eg) of the synthesized sample was estimated and it was found to decrease from 3.60 to 3.26 eV. The band gap energy reduced due to increase in Cu2+ dopant amount inside the SnO₂ lattice. Optical properties were analyzed using absorption spectra and Photoluminescence (PL) spectra. It was observed that Cu2+ ions incorporated SnO₂ NPs exhibited more degradation efficiencies for Rhodamine B (RhB) dye compared to un-doped sample under UV-Visible irradiation. The dielectric characteristics of un-doped, pure and Cu2+ incorporated SnO₂ nanoparticles were studied at different frequency region under different temperatures. The ac conductivity and impedance analysis of pure and Cu2+ incorporated SnO₂ nanoparticles was also studied. The magnetic properties of the synthesized samples were analysed. Both the sample showed ferromagnetic properties. The research indicated that the Cu2+ ions doping can make the sample a promising candidate for using in the field of optoelectronics, magneto electronics, and microwave devices.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.