Effects of low concentration cobalt doping on the magnetic and optical properties of Zn1-xCoxO nanorods

被引：0

作者：

Kaur, T. ^{[1
]}

Singh, J. ^{[5
]}

Singh, B. ^{[2
,3
]}

Pandey, V. S. ^{[2
,3
]}

Singh, G. ^{[1
,4
]}

Nayak, M. K. ^{[2
,3
]}

机构：

[1] Shri Guru Granth Sahib World Univ Fathegarh Sahib, Fathegarh Sahib, Punjab, India

[2] CSIR CSIO, Acad Sci & Innovat Res, Chandigarh, India

[3] CSIR Cent Sci Instrument Org, Chandigarh 160030, India

[4] Lakehead Univ, Thunder Bay, ON, Canada

[5] Bharat Elect Ltd, Ghaziabad, India

来源：

OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS | 2017年 / 11卷 / 5-6期

关键词：

Antiferromagnetic; Ferromagnetic; Nanorods; Surfactant; Wurtzite structure; Cobalt doped Zinc (ZC); CO-DOPED ZNO; THIN-FILMS; QUANTUM DOTS; FERROMAGNETISM; SEMICONDUCTOR; SPINTRONICS; ABSORPTION; NANOTUBES; GROWTH;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A systematic investigation of the structural and optical properties of Zn1-xCoxO (x=0.002, 0.004, 0.006 and x=0.008) nanorods synthesized by sol gel, using polyvinyl alcohol as surfactant, is presented. The formation of Co doped ZnO nanorods having size 22-28 nm, with polycrystalline behavior and wurtzite structure, is confirmed by TEM and XRD analysis. Doping concentrations of Co2+ ions affects the absorbance as well as magnetic properties of Zn1-xCoxO nanorods. Optical absorption measurements show that for doping concentration of Co2+ below 1%, the bandgap has a negative correlation with the concentration. Furthermore, magnetic hysteresis curve (B-H) depicts that the behavior of Zn1-xCoxO nanorods changes from ferromagnetic to antiferromagnetic by changing the Co2+ concentration from 0.2% to 0.8%.

引用

页码：364 / 367

页数：4

共 34 条

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