Benchmark Analysis on Magnetic and Photoluminescence Properties of Selective Metal Ions Doped ZnS Nanoparticles

Journal Article · Thu Aug 15 00:00:00 EDT 2019 · Journal of Superconductivity and Novel Magnetism

DOI:https://doi.org/10.1007/S10948-018-4972-5· OSTI ID:22922959

Manojkumar, K.; Prasad, B.; Kranthi, Y.; Varma, J. S. K.; Vinay, K. ^[1]; Amaranatha Reddy, D. ^[2]

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1. Raghu Engineering College, Department of Mechanical Engineering (India)
2. Pusan National University, Department of Chemistry and Chemical Institute for Functional Materials (Korea, Republic of)

The creation of diluted magnetic semiconductors (DMSs) at lower dimensions that exhibit room temperature ferromagnetism (RTFM) has been given immense significance for the fabrication of a new class of spintronic devices through utilizing spin degrees of freedom besides charge nature of electrons. In this view, nanocrystals of ZnS doped with 4% concentration of Fe, Co, Ni, Cr, Mn, Sr, Cu, and Ce have been synthesized at room temperature (RT) by chemical co-precipitation method. The samples were examined by various characterization techniques like energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), vibrating sample magnetometer (VSM), and photoluminescence (PL). EDS spectra revealed the existence of parent elements in the prepared samples. XRD characterization disclosed hexagonal structures of nanocrystals, and no secondary phases were observed in all the samples except for Cu and Ni doped ZnS. FTIR data confirmed the proper substitution of dopants in the host lattice as all the graphs have almost same stretchings. The magnetic nature of each sample was evaluated from M-H graphs of VSM, and it corroborated the transition of magnetic properties due to doping. Pristine ZnS showed diamagnetic nature, while Fe and Sr doped ZnS evinced strong ferromagnetic and anti-ferromagnetic properties, respectively. Photoluminescence studies on Ce, Sr and Mn doped ZnS samples revealed strong emission peaks with enhanced luminescence properties compared to bare ZnS. Cu, Cr and Mn doped ZnS exhibited a red shift in emission wavelengths, whereas Co doped ZnS showed emission peak shifted towards the blue region as compared to the host lattice.

• OSTI ID: 22922959
• Journal Information: Journal of Superconductivity and Novel Magnetism, Vol. 32, Issue 8; Other Information: Copyright (c) 2019 Springer Science+Business Media, LLC, part of Springer Nature; Country of input: International Atomic Energy Agency (IAEA); ISSN 1557-1939
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
CERIUM ADDITIONS
CHROMIUM ADDITIONS
COBALT ADDITIONS
COPPER ADDITIONS
DOPED MATERIALS
FERROMAGNETISM
FOURIER TRANSFORMATION
IRON ADDITIONS
MAGNETIC PROPERTIES
MAGNETIC SEMICONDUCTORS
MANGANESE ADDITIONS
NANOPARTICLES
NICKEL ADDITIONS
PHOTOLUMINESCENCE
SCANNING ELECTRON MICROSCOPY
STRONTIUM ADDITIONS
TRANSMISSION ELECTRON MICROSCOPY
VIBRATING SAMPLE MAGNETOMETERS
X-RAY DIFFRACTION
ZINC SULFIDES