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Electronic properties of carbon nanotoroidal structures

Yazgan, E
Tasci, E
Malcıoğlu, Osman Barış
Erkoc, S
Electronic properties of five carbon nanotori (C-170, C-250, C-360, C-520, and C-750) have been investigated by performing Extended-Huckel type calculations. Carbon nanotori considered is of Fonseca type having five-fold symmetry. It has been found that highest occupied molecular orbital-lowest occupied molecular orbital gaps of nanotori considered are very small, thus they may contain mobile electrons; pentagons and heptagons in the knee-regions act as an electron trap; and all the nanotori have a DOS distribution with common features. (C) 2004 Elsevier B.V. All rights reserved.