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Optical and magnetic properties of diluted magnetic semiconductor Zn0.95M0.05S nanorods prepared by a hydrothermal method

  • Wen-Hua Zhao , Zhi-Qiang Wei , Xue-Liang Zhu , Xu-Dong Zhang and Jin-Long Jiang
Published/Copyright: April 28, 2018
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 109 Issue 5

Abstract

Pure ZnS and doped Zn0.95M0.05S (M = Cr, Ni, Co, Fe and Mn) nanorods were successfully prepared by a hydrothermal method. The effects of the variety of doped elements on the crystal microstructure, morphology, optical and magnetic properties of the samples were investigated by means of X-ray diffraction, field emission scanning electron microscopy, high-resolution transmission electron microscopy, X-ray energy dispersive spectrometry, photoluminescence spectroscopy, UV–Visible diffuse reflectance spectroscopy and vibrating sample magnetometry. The experimental results show that all samples synthesized by this method possess single phase wurtzite structure with good crystallization, transition metal ions (M = Cr, Ni, Co, Fe and Mn) substitute for the lattice site of Zn2+ and generate single-phase Zn0.95M0.05S nanostructures. The morphologies of the samples are one-dimensional nanorods with good dispersion. The optical band gap of doped Zn0.95M0.05S decreases as the doping ion radius increases, and red shift occurs compared to undoped ZnS nanocrystals. Photoluminescence spectra exhibit clear ultraviolet emission and blue emission. Magnetic measurements indicate that the undoped and doped ZnS samples are ferromagnetic at room temperature.

Keywords: Transition metal doped; ZnS; Microstructure; Optical properties; Magnetic properties
*Correspondence address, Prof. Zhi-qiang Wei, State Key Laboratory of Advanced Processing and Recycling Nonferrous Metals, Lanzhou University of Technology, No. 287 Langongping Road, Qilihe District, Lanzhou Gansu 730050, P.R. China, Tel.: +86-0931-2973780, Fax: +86-0931-2976040, E-mail:

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Received: 2017-08-18
Accepted: 2017-12-18
Published Online: 2018-04-28
Published in Print: 2018-05-15

© 2018, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.111626
Keywords for this article
Transition metal doped; ZnS; Microstructure; Optical properties; Magnetic properties

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Manufacturing of functionally graded metal matrix composite materials by segregation
  5. Indenter size effect in high-pressure torsion deformed Pd-based metallic glass
  6. Investigation of the effect of bath temperature on the bath–freeze lining interface temperature in the CuOx–FeOy–MgO–SiO2 system at copper metal saturation
  7. Decomposition of Al4O4C in the presence of C at high temperatures in vacuum
  8. Optical and magnetic properties of diluted magnetic semiconductor Zn0.95M0.05S nanorods prepared by a hydrothermal method
  9. Structural, magnetic and optical properties of Al-substituted nickel ferrite nanoparticles
  10. Effect of processing parameters on microstructural and mechanical properties of aluminum–SiO2 nanocomposites produced by spark plasma sintering
  11. Sn-bonded LaFe11.6Si1.4Hy magnetocaloric composites with a 3-d Ni-coating steel substrate formed by hot-pressing
  12. Effect of laser energy density on microstructures and mechanical properties of selective laser melted Ti-6Al-4V alloy
  13. Structure and corrosion resistance of titanium oxide layers produced on NiTi alloy in low-temperature plasma
  14. Severe shot peening of AISI 321 with 1 000 % and 1 300 % coverages: A comparative study on the surface nanocrystallization, phase transformation, sub-surface microcracks, and microhardness
  15. Abrasive wear resistance of modified X37CrMoV5-1 hot work tool steel after conventional and laser heat treatment
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  20. In Memory of Prof. Dr.-Ing. Heinrich Wollenberger
  21. DGM News
  22. DGM News
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