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    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/045/0193

    • Keywords

       

      ZnO nanoparticles; diluted magnetic semiconductor; Halder–Wagner method; absorption spectra; photoluminescence studies; magnetic properties.

    • Abstract

       

      This article reports the structural, magnetic and optical responses of Gd ion-substituted ZnO nanoparticles prepared via soft chemical co-precipitation technique. Both the hexagonal wurtzite crystal structure and crystallographic phase purity of all the samples were observed by using X-ray diffraction (XRD) technique. Three widely accepted methods, i.e., Scherrer’s approach, Williamson–Hall plot and Halder–Wagner method, have been used to determine the average crystallite size and microstrain within the nanosized ZnO crystals. Average crystallite size was obtained within the range of 23 ± 3 nm. Mean particle size obtained from HRTEM image was also found in good harmony with the XRD results. UV–visible spectra signified that all the nanosized ZnO samples manifested strong absorption in between 410 and 455 nm. The presence of both Zn and O vacancies in the samples was verified by the photoluminescence studies.Paramagnetic response of Gd ions in ZnO nanoparticles weakened the defect-driven magnetic behaviour at room temperature.

    • Author Affiliations

       

      SHRADHA ROY MRITUNJOY PRASAD GHOSH SIPUN MOHANTY SAMRAT MUKHERJEE1

      1. Department of Physics, National Institute of Technology Patna, Patna 800005, India

    • Dates

       
      Published
      29 September 2022
      Manuscript received
      6 March 2022
      Accepted
      27 May 2022
      Final version published online
      29 September 2022

  • Bulletin of Materials Science | News

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      Posted on October 12, 2020

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      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
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    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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