Structural, optical and photoconductivity of Sn and Mn doped TiO2 nanoparticles

被引：86

作者：

Tripathi, Anand Kumar ^{[1
]}

Mathpal, Mohan Chandra ^{[1
]}

Kumar, Promod ^{[2
]}

Singh, Manish Kumar ^{[3
]}

Soler, M. A. G. ^{[4
]}

Agarwal, Arvind ^{[1
]}

机构：

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

[2] Natl Inst Technol, Dept Phys, Srinagar 190006, Jammu & Kashmir, India

[3] LNM Inst Informat Technol, Dept Phys, Jaipur 302031, Rajasthan, India

[4] Univ Brasilia, Inst Fis, BR-70910900 Brasilia, DF, Brazil

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 622卷

关键词：

Semiconductors; Sol-gel processes; Nanoparticles; TiO2; Photoconductivity; Photoluminescence; PHOTOCATALYTIC DEGRADATION; RAMAN-SPECTRA; TRANSFORMATION; LUMINESCENCE; TEMPERATURE; DEPENDENCE; PARTICLES; ENERGY;

D O I：

10.1016/j.jallcom.2014.09.218

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The Sn and Mn doped TiO2 nanostructures were synthesized by sol-gel method. The Sn doped TiO2 nanoparticles exhibit anatase-rutile mixed phase, while the Mn doped TiO2 nanoparticles exhibit anatase phase. The Sn and Mn doped TiO2 nanoparticles are spherical in shape and show tensile strain in the host lattice. The optical band gap for these nanoparticles indicates the red shift. It has been observed that the PL intensity decreases after doping of Sn in TiO2 but it starts increasing with increase in Sn content. The pure TiO2 exhibits all the possible emission bands while Sn and Mn doped TiO2 nanoparticles show blue-green emission bands. The doping behavior of Sn and Mn on crystal phase, particle size, XRD patterns, absorption spectra, photoluminescence and photoconductivity of TiO2 nanoparticles have been described. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：37 / 47

页数：11

共 51 条

[1]

[Anonymous], PHOTOCONDUCTIVITY SO

[2] Visible-light photocatalysis in nitrogen-doped titanium oxides [J].