Influence of Fe doping on the structural, optical and magnetic properties of ZnS diluted magnetic semiconductor

被引：53

作者：

Saikia, D. ^{[1
]}

Raland, R. D. ^{[1
]}

Borah, J. P. ^{[1
]}

机构：

[1] Natl Inst Technol Nagaland, Dept Phys, Dimapur 797103, Nagaland, India

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2016年 / 83卷

关键词：

ZnS nanoparticles; Luminescence; Diluted magnetic semiconductor; X-ray diffraction; ROOM-TEMPERATURE FERROMAGNETISM; NANOPARTICLES; EPR; PHOTOLUMINESCENCE; SPECTRA;

D O I：

10.1016/j.physe.2016.04.016

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Fe doped ZnS nanoparticles with different concentrations of Fe, synthesized by microwave assisted co precipitation method have been reported. The incorporation of Fe2+ and Fe3+ ions into ZnS lattice are confirmed by X-ray diffraction (XRD) and Electron Paramagnetic resonance (EPR) study. XRD and High Resolution Transmission electron Microscope (HRTEM) results confirm the phase purity of the samples and indicate a reduction of the particle size with increase in Fe concentration. EDAX analysis confirms the presence of Zn, S and Fe in the samples. A yellow-orange emission peak is observed in Photoluminescence (PL) spectra which exhibits the Characteristic T-4(2) (4G)-6A1 (6S) transition of Fe3+ ion. The room temperature magnetic studies as analyzed from M-H curves were investigated from vibrating samples magnetometer (VSM) which shows a weak ferro and superparamagnetic like behavior in 1% and 3% Fe-doped ZnS nanocrystals, whereas; at 10% Fe-doping concentrations, antiferromagnetism behavior is achieved. The ZFC-FC measurement reveals that the blocking temperature of the nanoparticle is above the room temperature. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：56 / 63

页数：8

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