Nanoparticles of Zinc Sulfide (ZnS) co-doped with Tin (Sn) and Nickel (Ni) have been synthesized using solid state reaction and the nanoparticles were then deposited on to glass substates by physical vapour deposition technique. The structural, morphological, optical and magnetic properties of the prepared nanoparticles and thin films were analyzed in detail. Single phase cubic structure was observed for both nanoparticles and thin films. The optical band gap became narrower for co-doped nanoparticles compared to the individually doped nanoparticles. The co-doped thin films showed a maximum transmittance (93%) in the visible region. The co-doped nanoparticles exhibited soft ferromagnetic nature at room temperature, while room temperature paramagnetic nature was observed in co-doped thin films. © 2019 Elsevier Ltd

Shaik Kaleemulla

Department of Physics

School of Advanced Sciences

Vellore Campus

Kumar K.C

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Materials Science in Semiconductor Processing

Tin (Sn)-doped zinc sulfide (Zn1−xSnxS) thin films at different tin (Sn) concentrations (= 0.00, 0.02, 0.05, and 0.08) were coated onto Corning 7059 glass substrates using the electron beam evaporation technique. The films were subjected to different characterization techniques to study the physical properties of the thin films. The structural properties of the films were studied using a powder X-ray diffractometer (XRD), and it was found that the films were cubic in structure without any impurity phases. The crystallite size increased with an increase of Sn concentration, and the mean crystallite size was 21 nm. The chemical composition and surface morphology of the films were studied using scanning electron microscopy (FE-SEM) with energy-dispersive analysis of X-rays (EDAX). Optical properties such as transmittance and absorbance were recorded using a diffuse reflectance spectroscope (UV–vis–NIR). All the films exhibited high optical transmittance of 85% in the visible region of the solar spectrum. The band gap of the films was calculated using Tauc’s relation, and it was found that it increased from 3.53 to 3.57 eV with an increase in the Sn doping concentration from x = 0.02 to x = 0.08. The room temperature photoluminescence studies of the films were recorded using a fluorescence spectrophotometer, and it was found that the films exhibited a prominent emission peak at 420 nm. The magnetic properties of the films and glass substrates at room temperature were studied using a vibrating sample magnetometer. From this, it was found that the films were weakly ferromagnetic at room temperature and the strength of magnetization increased with an increase of doping concentration from x = 0.02 to x = 0.05 and decreased at higher doping concentrations (x = 0.08). The films showed high magnetization at x = 0.05. The films at x = 0.05 exhibited the magnetization (Ms), retentivity (Mr), and coercive fields (Hc) 18 × 10− 6 emu/cm3, 1.6 × 10− 6 emu/cm3, and 91.80 Oe, respectively. © 2018, Springer Science+Business Media, LLC, part of Springer Nature.

Journal of Superconductivity and Novel Magnetism

Evidence of Room Temperature Ferromagnetism in Zn1−xSnxS Thin Films

Applied Physics A

Room-temperature ferromagnetic Zn1−xNi x S nanoparticles

Tin doped ZnS powders (Zn1−xSnxS, x = 0.00, 0.02, 0.05&amp;0.08) were synthesized by a simple Solid state reaction and were characterized by Powder X-ray diffractometer (XRD), UV–Vis–NIR diffuse reflectance spectrophotometer, fluorescence spectrophotometer, scanning electron microscope (SEM) and vibrating sample magnetometer (VSM). The XRD studies revealed that no change in crystal structure was observed by the substitution of Sn into ZnS lattice. The crystallite size was calculated by Scherrer's formula and found that the crystallize size of Sn doped ZnS powders were in the range of 35–45 nm. From the diffused reflectance spectra, the band gap values of Zn1−xSnxS powders were estimated, and they were found to be in the range of 3.53–3.58 eV. The pure ZnS particles showed higher optical absorption in visible region than that of Sn doped ZnS nano particles. The Photoluminescence (PL) spectra of Zn1−xSnxS powders were recorded in the range of 400–700 nm with an excitation wavelength of 360 nm. The Zn1−xSnxS powders exhibited ferromagnetism at low temperature (100 K) and super paramagnetism at room temperature (300 K). The strength of magnetization increased with increase of Sn doping concentration from 0.015 emu/g to 0.18 emu/g, when x increased from 0.00–0.05. © 2017 Elsevier B.V.

Physica B: Condensed Matter

Structural, optical and magnetic properties of Sn doped ZnS nano powders prepared by solid state reaction

Journal of Materials Science: Materials in Electronics

Structural, optical and magnetic properties of (Cu, Ni) co-doped ZnS nanoparticles

Journal of Electronic Materials

Structural, Optical, and Magnetic Properties of Solution-Processed Co-Doped ZnS Thin Films

Effect of (Sn, Ni) co-doping on structural, optical and magnetic properties of ZnS Nanoparticles and thin films

Journal	Data powered by TypesetMaterials Science in Semiconductor Processing
Publisher	Data powered by TypesetElsevier BV
ISSN	1369-8001
Open Access	0