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Improved magnetism in Cr doped ZnS nanoparticles with nitrogen co-doping synthesized using chemical co-precipitation technique

Journal of Materials Science: Materials in Electronics volume 26, pages 9158–9163 (2015)Cite this article

Abstract

2 % Cr doped ZnS nanoparticles were synthesized using chemical co-precipitation technique. Powder X-ray diffraction reveals that Cr incorporates into the ZnS crystal lattice without troubling the original cubic structure. Transmission electron microscopy measurements show that the average size of these nanoparticles is in the range 3–4 nm. Room temperature photoluminescence studies show the increase in defects with increase in nitrogen co-doping. 2 % Cr doped ZnS exhibit hysteresis loop at room temperature indicating the magnetic behavior with diamagnetic contribution with increase in applied field. Increase in nitrogen co-doping along with Cr in ZnS shows enhanced ferromagnetism with saturated magnetization.

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Authors and Affiliations

  1. Department of Physics, Punjabi University, Patiala, Punjab, 147002, India

    Palvinder Kaur & S. M. Rao

  2. Applied Science Department, PEC University of Technology, Chandigarh, 160012, India

    Sanjeev Kumar

  3. Department of Physics, Guru Nanak Dev University, Amritsar, 143005, India

    Anupinder Singh

  4. Institute of Physics, Academia Sinica, Taipei, 11529, Taiwan

    S. M. Rao

Authors
  1. Palvinder Kaur
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  2. Sanjeev Kumar
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  3. Anupinder Singh
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  4. S. M. Rao
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Correspondence to Sanjeev Kumar.

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Kaur, P., Kumar, S., Singh, A. et al. Improved magnetism in Cr doped ZnS nanoparticles with nitrogen co-doping synthesized using chemical co-precipitation technique. J Mater Sci: Mater Electron 26, 9158–9163 (2015). https://doi.org/10.1007/s10854-015-3605-z

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  • DOI: https://doi.org/10.1007/s10854-015-3605-z

Keywords

  • Room Temperature Ferromagnetism
  • Sodium Sulphide
  • Chromium Acetate
  • High Resolution Transition Electron Microscope
  • Free Delocalized Carrier