Synthesis, strucutral and optical properties of vanadium doped zinc oxide nanograins

被引：53
|
作者：
Krithiga, R. [1 ]
Chandrasekaran, G. [1 ]
机构：
[1] Pondicherry Univ, Sch Phys Chem & Appl Sci, Magnetism & Magnet Mat Lab, Pondicherry 605014, India
来源：
JOURNAL OF CRYSTAL GROWTH | 2009年 / 311卷 / 21期
关键词：
Characterization; Ceramic double sintering; Nanomaterials; Zinc oxide; Dilute magnetic semiconductor; ZNO THIN-FILMS; QUANTUM DOTS; SEMICONDUCTORS; FABRICATION; ABSORPTION; ZN1-XMNXO; GROWTH;
D O I：
10.1016/j.jcrysgro.2009.08.033
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
High purity nanorods of vanadium doped zinc oxide with five different concentrations are prepared by a well known ceramic double sintering method. XRD patterns of the samples reveal a wurtzite phase formation. SEM micrographs confirm the nanorods in the samples. Purity of the samples is characterised using EDX analysis. UV-Vis-NIR study of the samples shows a red shift in bandgap for the substitution of V in ZnO matrix. FTIR study confirms the presence of defect states and enhancement of covalent bonding over ionic bond due to the incorporation of the V ions into ZnO lattice. An ultimate find we report in the present work is that the addition of V in ZnO could smoothly tailor the optical bandgap energy due to formation of the exciton states. An enhancement of covalent bonding in V doped ZnO will provide a platform for the third order susceptibility or photonic applications. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：4610 / 4614
页数：5
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