Electronic properties of single-walled V2O5 nanotubes

✍ Scribed by V.V Ivanovskaya; A.N Enyashin; A.A Sofronov; Yu.N Makurin; N.I Medvedeva; A.L Ivanovskii

• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 153 KB
• Volume: 126
• Category: Article
• ISSN: 0038-1098
• DOI: 10.1016/s0038-1098(03)00254-0

✦ Synopsis

Atomistic models of quasi-one-dimensional vanadium pentoxide nanostructures-single-walled nanotubes formed by rolling (010) layers of V 2 O 5 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 ðn; nÞ-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 V 2 O 5 tubes, whereas V-V bonds proved to be much weaker.