Synthesis and structural characterization of Co2+ ions doped ZnO nanopowders by solid state reaction through sonication

被引：30

作者：

Babu, B. ^{[1
]}

Krishna, Ch. Rama ^{[1
]}

Reddy, Ch. Venkata ^{[1
,2
]}

Manjari, V. Pushpa ^{[1
]}

Ravikumar, R. V. S. S. N. ^{[1
]}

机构：

[1] Acharya Nagarjuna Univ, Univ Coll Sci, Dept Phys, Nagarjuna Nagar 522510, Andhra Pradesh, India

[2] KL Univ, Dept Phys, Vaddeswaram 522502, India

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2013年 / 109卷

关键词：

ZnO nanopowder; Co2+ ions; Sonication method; Powder X-ray diffraction; Spectroscopic investigations; Site symmetry; ROOM-TEMPERATURE; PHOTOCATALYTIC ACTIVITY; OXIDE NANOPARTICLES; OPTICAL-PROPERTIES; THIN-FILMS; PARTICLES; NANORODS; CO(II); GROWTH; NETWORKS;

D O I：

10.1016/j.saa.2013.02.032

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Cobalt ions doped zinc oxide nanopowder was prepared at room temperature by a novel and simple one step solid-state reaction method through sonication in the presence of a suitable surfactant Sodium Lauryl Sulphate (SLS). The prepared powder was characterized by various spectroscopic techniques. Powder XRD data revealed that the crystal structure belongs to hexagonal and its average crystallite size was evaluated. From optical absorption data, crystal fields (Dq), inter-electronic repulsion parameters (B, C) were evaluated. By correlating optical and EPR spectral data, the site symmetry of Co2+ ion in the host lattice was determined as octahedral. Photoluminescence spectra exhibited the emission bands in ultraviolet and blue regions. The CIE chromaticity coordinates are also evaluated from the emission spectrum. FT-IR spectra showed the characteristic vibrational bands of Zn-O. (C) Elsevier B.V. All rights reserved.

引用

页码：90 / 96

页数：7

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