Título

Strong and stable photoluminescence from the semiconducting inner tubes within double walled carbon nanotubes

Autor

Hiroyuki Muramatsu

MAURICIO TERRONES MALDONADO

Dresselhaus Mildred

Nivel de Acceso

Acceso Abierto

Licencia

http://creativecommons.org/licenses/by-nc-nd/4.0

Identificador alterno

doi: https://doi.org/10.1063/1.3085966

Materias

Carbon nanotubes - (AUTOR) Chirality - (AUTOR) Elemental semiconductors - (AUTOR) Excitons - (AUTOR) Photoluminescence; - (AUTOR) Red shift - (AUTOR) Semiconductor nanotubes - (AUTOR) CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA - (CTI) FÍSICA - (CTI)

Resumen o descripción

"We examined the optical features of single wall carbon nanotubes (SWNTs) and the inner tubes within double walled carbon nanotubes (DWNTs) having the same (n,m) chirality. The brighter and more stable photoluminescence signals as well as the larger absorbance were observed for the semiconducting inner tubes within DWNTs and not for SWNTs. The outer layers of DWNTs maintain the high structural integrity of the inner tubes during both oxidative purification and strong sonication steps and are responsible in increasing the dielectric screening (due to weaker Coulomb interaction); thus leading to a redshift of the E(11)(S) and E(22)(S) excitonic transitions."

Editor

American Institute of Physics

Fecha de publicación

enero de 2009

Tipo de publicación

Artículo

Versión de la publicación

Versión publicada

Recurso de información

http://ipicyt.repositorioinstitucional.mx/jspui/handle/1010/1116

Formato

application/pdf

Idioma

Inglés

Audiencia

Público en general

Sugerencia de citación

Appl. Phys. Lett. 94, 083106 (2009)

Repositorio Orígen

Repositorio IPICYT

Descargas

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