journal article·2015-01

Room temperature investigations on optical and magnetic studies of CoxZn1−xS nanorods

Sunil Kumar, N.K. Verma

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Abstract

Abstract In this report, structural optical and magnetic properties of Co x Zn 1− x S ( 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 Co x Zn 1− x S nanorods, studied using X-ray diffraction (XRD), indicates wurtzite structure with lattice parameters, a =3.84 Ǻ and c =6.25 Ǻ for Co x Zn 1− x S ( 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 Co x Zn 1− x S ( x =0.01, 0.05) nanorods, and quenches in Co x Zn 1− x S ( 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.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Quantum Dots Synthesis And Properties · Chalcogenide Semiconductor Thin Films · ZnO doping and properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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