Femtosecond Dynamics in Single Wall Carbon Nanotube/Poly(3-Hexylthiophene) Composites

Autor:	Alexandrou Ioannis, Lioudakis Emmanouil, Othonos Andreas
Jazyk:	angličtina
Rok vydání:	2008
Předmět:	Ultrafast spectroscopy Single wall carbon nanotubes Exciton dissociation Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	Nanoscale Research Letters, Vol 3, Iss 8, Pp 278-283 (2008)
Druh dokumentu:	article
ISSN:	1931-7573 1556-276X
DOI:	10.1007/s11671-008-9149-x
Popis:	AbstractFemtosecond transient absorption measurements on single wall carbon nanotube/poly(3-hexylthiophene) composites are used to investigate the relaxation dynamics of this blended material. The influence of the addition of nanotubes in polymer matrix on the ultrashort relaxation dynamics is examined in detail. The introduction of nanotube/polymer heterojunctions enhances the exciton dissociation and quenches the radiative recombination of composites. The relaxation dynamics of these composites are compared with the fullerene derivative-polymer composites with the same matrix. These results provide explanation to the observed photovoltaic performance of two types of composites.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/a889761947f740fc8fce5642cffeef4f Zobrazit plný text záznamu Full text from SpringerLink View record in DOAJ