Influence of Co-doping on the thermal, structural, and optical properties of sol-gel derived ZnO nanoparticles

被引：93

作者：

Bhargava, Richa ^{[1
]}

Sharma, Prashant K. ^{[2
]}

Dutta, Ranu K. ^{[2
]}

Kumar, Sanjeev ^{[3
]}

Pandey, Avinash C. ^{[2
]}

Kumar, Naresh ^{[1
]}

机构：

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

[2] Univ Allahabad, Nanophosphor Applicat Ctr, Allahabad 211002, Uttar Pradesh, India

[3] Dharmsinh Desai Univ, Shah Schulman Ctr Surface Sci & Nanotechnol, Nadiad 387001, Gujarat, India

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2010年 / 120卷 / 2-3期

关键词：

Oxides; Sol-gel growth; Optical properties; HYDROTHERMAL SYNTHESIS; RAMAN; PHOTOLUMINESCENCE; MN;

D O I：

10.1016/j.matchemphys.2009.11.024

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present study, thermal, structural, and optical properties of sol-gel derived Zn1-xCoxO (x = 0.05, 0.10, 0.15 and 0.20) nanoparticles were studied. These nanoparticles were characterized by using Thermogravimetry/Differential thermal analysis (TG/DTA), X-ray diffraction (XRD), Photoluminescence (PL), Raman, and Transmission electron microscopy (TEM). The process of sol-gel for the Zn1-xCoxO synthesis undergoes three stage weight loss, in the case of lower Co concentrations (x <= 0.15) before yielding Zn1-xCoxO nanoparticles. However, for x = 0.20, two stage weight loss have been observed in TG/DTA analysis. The XRD data shows single phase Zn1-xCoxO for the lower (x <= 0.15) Co concentration, while a secondary phase of Co3O4 is evolved for x = 0.20. The Raman and Photoluminescence data support the secondary phase formation for x = 0.20 in Zn1-xCoxO. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：393 / 398

页数：6

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