Okada, Susumu (2007) Electronic structure of finite-length carbon nanotubes: Crossover from fullerenes to nanotubes. NANO, 2 (1). pp. 51-57.
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Official URL: http://dx.doi.org/10.1142/S1793292007000349
Abstract
Finite-size effects in armchair (n, n) carbon nanotubes are studied as a function of the tube length by using the generalized tight-binding calculations. End structures of the tubes considered here are caps formed from hemispherical pieces of I-h fullerenes and hydrogen-free open ends. It has been clarified that the dimensionality in electronic structures of the finite-length nanotubes only depends on an aspect ratio of the tube diameter to the length of the cylindrical region. The aspect ratio where the finite-length tubes exhibit one-dimensional properties is found to be about four. The results corroborate that the nanotubes with their length of 10-100 nm experimentally observed could be regarded as one-dimensional electron systems.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | nanotube; fullerenes; dimensionality |
| Subjects: | Physical Science > Nano objects Physical Science > Nanoelectronics Material Science > Nanochemistry Material Science > Nanostructured materials |
| ID Code: | 2973 |
| Deposited By: | Anuj Seth |
| Deposited On: | 12 Jan 2009 12:15 |
| Last Modified: | 20 Jan 2009 11:58 |
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