Investigation of the Magnetic and Optical Properties of Wurtzite Fe-Doped ZnS Nanorods

被引：11

作者：

Kumar, Sunil ^{[1
,2
]}

Verma, N. K. ^{[1
]}

机构：

[1] Thapar Univ, Sch Phys & Mat Sci, Nano Res Lab, Patiala 147004, Punjab, India

[2] Ind Int Univ, Dept Phys, Una 174301, Himachal Prades, India

来源：

JOURNAL OF ELECTRONIC MATERIALS | 2015年 / 44卷 / 08期

关键词：

Nanorods; dilute magnetic semiconductors; blue-shift; quenching; ferromagnetism; NANOCRYSTALS; PHOTOLUMINESCENCE; SEMICONDUCTORS; NANOPARTICLES; SIZE; CU;

D O I：

10.1007/s11664-015-3688-6

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The optical and magnetic properties of Fe-doped ZnS nanorods have been investigated at room temperature. X-ray diffraction revealed the doped and undoped nanorods had a wurtzite crystal structure. The lattice constants of Fe-doped ZnS nanorods were less than those of the undoped counterpart. The elemental composition of the Fe-doped ZnS nanorods was verified by use of electron dispersive spectroscopy, which confirmed the presence of Fe. Compared with the undoped counterpart, a blue shift in the absorption edge was observed for Fe-doped ZnS nanorods. Blue and green emission lines were obtained from undoped and Fe-doped ZnS nanorods at 447 nm and 533 nm, respectively. Study of photoluminescence intensity revealed quenching at higher Fe concentration. The ferromagnetic character induced in Fe-doped ZnS nanorods was analyzed by use of M-H curves. Magnetic saturation initially increased with increased Fe doping up to 5%, then decreased with Fe doping up to 10%.

引用

页码：2829 / 2834

页数：6

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