Citation
G. Seifert et al., On the electronic structure of WS2 nanotubes, SOL ST COMM, 114(5), 2000, pp. 245-248
Citations number
17
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SOLID STATE COMMUNICATIONS
ISSN journal
00381098
→ ACNP
Volume
114
Issue
5
Year of publication
2000
Pages
245 - 248
Database
ISI
SICI code
0038-1098(2000)114:5<245:OTESOW>2.0.ZU;2-J
Abstract
Electronic properties of WS2 nanotubes have been studied using the Density
Functional Based Tight Binding method (DFTB). We show that WS2 nanotubes ar
e all semiconducting possessing a non zero moderate gap. Only for zig-zag (
n, 0) nanotubes the band gap tends to vanish for very small tube diameters
(< 10 Angstrom). The (n, n) tubes exhibit an indirect gap of similar size a
s the direct gap in (n, 0) nanotubes of comparable diameter. (C) 2000 Elsev
ier Science Ltd. All rights reserved.