Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8156839 | Journal of Magnetism and Magnetic Materials | 2015 | 5 Pages |
Abstract
In this report, structural optical and magnetic properties of CoxZn1âxS (x=0, 0.01, 0.05 and 0.1) nanorods have been investigated at room temperature. The average diameter and length of as synthesized nanorods, analyzed using transmission electron microscopy (TEM), are ~10 nm and ~100 nm, respectively. The crystal structure of CoxZn1âxS nanorods, studied using X-ray diffraction (XRD), indicates wurtzite structure with lattice parameters, a=3.84 Ǻ and c=6.25 Ǻ for CoxZn1âxS (x=0) nanorods which are found decreased with increased Co concentration in ZnS lattice. The band gap of Co-doped ZnS nanorods has been found to be blue shifted as compared to the undoped counterpart. Emission spectra indicate two peaks at 422 nm and 485 nm. Emission intensity increases in case of CoxZn1âxS (x=0.01, 0.05) nanorods, and quenches in CoxZn1âxS (x=0.1) nanorods. The ferromagnetization has been observed in case of Co-doped ZnS nanorods, whereas, undoped ZnS nanorods exhibit mixed diamagnetic-ferromagnetic behavior. The magnetization increases with increased Co concentration.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Sunil Kumar, N.K. Verma,