Formation and characterization of flame synthesized hexagonal zinc oxide nanorods for gas sensor applications

被引:10
作者
Kathirvel, P. [1 ]
Chandrasekaran, J. [2 ]
Manoharan, D. [2 ]
Kumar, S. [3 ]
机构
[1] Bharathiar Univ, Ctr Res & Dev, Coimbatore 641046, Tamil Nadu, India
[2] Sri Ramakrishna Mission Vidyalaya Coll Arts & Sci, Dept Phys, Coimbatore 641020, Tamil Nadu, India
[3] Int Adv Res Ctr Power Met & New Mat ARCI, Ctr Engn Coatings, Hyderabad 500005, Andhra Pradesh, India
关键词
Gas phase reaction; Optical properties; ZnO; Sensors; ZNO NANOSTRUCTURES; POINT-DEFECTS; LUMINESCENCE; GROWTH;
D O I
10.1016/j.ceramint.2012.12.037
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Highly crystalline ZnO nanorods were synthesized via a simple flame synthesis technique from micro-metallic Zn. The X-ray diffraction analysis confirms presence of zinc oxide nanorods with highly oriented wurtzite structure in which the oxygen atoms are arranged in a hexagonal close packed lattice and zinc atoms occupy half of the tetrahedral sites. The photoluminescence spectrum of the nanorods shows the presence of interstitial vacancy of Zn. Energy dispersive X-ray spectrum reveals oxygen deficiency, which leads to ferromagnetic behavior and gas sensing property of the nanorods. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码:5321 / 5325
页数:5
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