Electronic properties of single-walled V2O5 nanotubes

被引:38
作者
Ivanovskaya, VV
Enyashin, AN
Sofronov, AA
Makurin, YN
Medvedeva, NI
Ivanovskii, AL
机构
[1] Russian Acad Sci, Ural Branch, Inst Solid State Chem, Ekaterinburg 620219, Russia
[2] Ural State Tech Univ, Ekaterinburg 620001, Russia
关键词
vanadium pentoxide nanotubes; electronic band structure; VANADIUM-OXIDE NANOTUBES; WS2; NANOTUBES; CRYSTALLINE;
D O I
10.1016/S0038-1098(03)00254-0
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Atomistic models of quasi-one-dimensional vanadium pentoxide nanostructures-single-walled nanotubes formed by rolling (010) layers Of V2O5 are constructed and their electronic properties and bond indices are studied using the tight-binding band method. We show that all zigzag (n,0)- and armchair (n, n)-like nanotubes are uniformly semiconducting, and the band gap trends to vanish as the tube diameters decrease. The V-O covalent bonds were found to be the strongest interactions in V2O5 tubes, whereas V-V bonds proved to be much weaker. (C) 2003 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:489 / 493
页数:5
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