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Título: | Absorption of BN nanotubes under the influence of a perpendicular electric field |
Autor: | Attaccalite, Claudio; Wirtz, Ludger; Marini, Andrea; Rubio, Angel CSIC ORCID | Fecha de publicación: | nov-2007 | Editor: | Wiley-VCH | Citación: | physica status solidi (b) 244(11): 4288-4292 (2007) | Resumen: | We calculate the optical absorption spectra of prototype (6,6) and (9,9) BN nanotubes in the presence of a perpendicular electric field. This model mimics a gated BN nanotube device. Even though the band-gap of the tubes decreases strongly as a function of the electric field strength, the absorption spectrum of the pure tubes remains remarkably constant up to high field-strength. We show that, in contrast, the levels which are responsible for defect-mediated photo-luminescence are shifted by the electric field. We address the use of BN nanotubes for optoelectronic applications. | Versión del editor: | http://dx.doi.org/10.1002/pssb.200776199 | URI: | http://hdl.handle.net/10261/97902 | DOI: | 10.1002/pssb.200776199 | ISSN: | 0370-1972 | E-ISSN: | 1521-3951 |
Aparece en las colecciones: | (CFM) Artículos |
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Absorption of BN nanotubes.pdf | 543,93 kB | Adobe PDF | Visualizar/Abrir |
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