Effect of Mn doping on structural, optical and magnetic properties of SnO2 nanoparticles

被引：32

作者：

Agrahari, Vivek ^{[1
]}

Tripathi, Anand Kumar ^{[1
]}

Mathpal, Mohan Chandra ^{[1
,2
]}

Pandey, Avinash C. ^{[3
]}

Mishra, Sheo Kumar ^{[4
]}

Shukla, R. K. ^{[4
]}

Agarwal, Arvind ^{[1
]}

机构：

[1] Motilal Nehru Natl Inst Technol, Dept Phys, Allahabad 211004, Uttar Pradesh, India

[2] IIT, Dept Phys, Bombay 400076, Maharashtra, India

[3] Univ Allahabad, NAC, Allahabad 211002, Uttar Pradesh, India

[4] Univ Lucknow, Dept Phys, Lucknow 226007, Uttar Pradesh, India

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2015年 / 26卷 / 12期

基金：

英国科研创新办公室;

关键词：

DOPED SNO2; NANOCRYSTALLINE SNO2; OXIDE; FERROMAGNETISM; BEHAVIOR; POWDERS; FILMS; TIO2; GD;

D O I：

10.1007/s10854-015-3620-0

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 Mn doped SnO2 nanoparticles synthesized by cost effective chemical co-precipitation method has been investigated in the present work. The main focus of the work is to explore the structural, optical and magnetic properties of the SnO2 nanostructures. The crystallite size decreases with increase in Mn doping to SnO2 matrix. The optical band gap of doped SnO2 nanoparticles continuously decreases with increasing Mn ion doping concentration. All the doped SnO2 nanoparticles show paramagnetic behavior at room temperature. SnO2 exhibits ferromagnetic behavior in the range of low external applied magnetic field due to the presence of oxygen vacancies (V (o) (+) ) and defects. The undoped SnO2 nanoparticles are spherical in shape while Mn doped SnO2 nanoparticles show the segregation of the spherically shaped nanoparticles. Mn ions only enhance the paramagnetic ordering and degrade the ferromagnetism already present in the SnO2 nanoparticle.

引用

页码：9571 / 9582

页数：12

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