Ultrafast Exciton Energy Transfer between Nanoscale Coaxial Cylinders: Intertube Transfer and Luminescence Quenching in Double-Walled Carbon Nanotubes

We study exciton energy transfer in double-walled carbon nanotubes using femtosecond time-resolved luminescence measurements. From direct correspondence between decay of the innertube luminescence and the rise behavior in outertube luminescence, it is found that the time constant of exciton energy t...

Full description

Saved in:
Bibliographic Details
Published in:ACS nano 2011-07, Vol.5 (7), p.5881-5887
Main Authors: Koyama, Takeshi, Asada, Yuki, Hikosaka, Naoki, Miyata, Yasumitsu, Shinohara, Hisanori, Nakamura, Arao
Format: Article
Language:English
Subjects:
Carbon nanotubes
Energy transfer
Excitation
Femtosecond
Luminescence
Nanostructure
Quenching
Tubes
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We study exciton energy transfer in double-walled carbon nanotubes using femtosecond time-resolved luminescence measurements. From direct correspondence between decay of the innertube luminescence and the rise behavior in outertube luminescence, it is found that the time constant of exciton energy transfer from the inner to the outer semiconducting tubes is ∼150 fs. This ultrafast transfer indicates that the relative intensity of steady-state luminescence from the innertubes is ∼700 times weaker than that from single-walled carbon nanotubes.
ISSN:1936-0851
1936-086X
DOI:10.1021/nn201661q