STRUCTURAL AND MAGNETIC PROPERTIES OF NANOCRYSTALLINE POWDERS OF Ni-DOPED ZnO DILUTED MAGNETIC SEMICONDUCTORS SYNTHESIZED BY SOL-GEL METHOD

被引：0

作者：

Malaeru, Teodora ^{[1
]}

Neamtu, Jenica ^{[1
]}

Morari, Cristian ^{[1
]}

Sbarcea, Gabriela ^{[1
,2
]}

机构：

[1] Natl Inst Res & Dev Elect Engn ICPE CA, Bucharest, Romania

[2] Politehn Univ, Bucharest, Romania

来源：

REVUE ROUMAINE DE CHIMIE | 2012年 / 57卷 / 9-10期

关键词：

nanoparticles; sol-gel method; ferromagnetism; diluted magnetic semiconductor;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This paper describes the synthesis of nanocrystalline powders of ZnO:Ni diluted magnetic semiconductor synthesized by sol-gel method. The effects of Ni doping on the structural and optical properties of ZnO:Ni nanoparticles in powder samples are investigated using X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, ultraviolet-visible spectroscopy and scanning electron microscopy (SEM). The XRD and Fourier transmission infrared (FTIR) results indicated that the synthesized ZnO:Ni powders have a pure wurtzite structure without any significant change in the structure affected by substituting Zn with Ni. Optical absorption measurements showed absorption bands indicating the presence of Ni2+ by substitution of Zn2+. The magnetic properties of the nanocrystalline powders of ZnO:Ni have been determined by Vibrating Sample Magnetometry (VSM). Room temperature magnetization results revealed a ferromagnetic behavior for the ZnO:Ni nanocrystalline powders..

引用

页码：857 / 862

页数：6

共 10 条

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