Nano Science and Technology InstituteNano Science and Technology Institute
Nano Science and Technology Institute 2005 NSTI Nanotechnology Conference & Trade Show
Nanotech 2005
Bio Nano 2005
Business & Investment
Nano Impact Workshop
Program
Sessions
Sunday
Monday
Tuesday
Wednesday
Thursday
Index of Authors
Index of Keywords
Keynote Presentations
Confirmed Speakers
Participating Companies
Industry Focus Sessions
Nanotech Expo
Special Symposia
Conferences
Sponsors
Exhibitors
Venue 2005
Organization
Press Room
Subscribe
Site Map
Nanotech 2005 At A Glance
Nanotech Proceedings
Nanotechnology Proceedings
Global Partner
nano tech
Supporting Organizations
Nanotech 2005 Supporting Organization
Media Sponsors
Nanotech 2005 Medias Sponsors
Event Contact
696 San Ramon Valley Blvd., Ste. 423
Danville, CA 94526
Ph: (925) 353-5004
Fx: (925) 886-8461
E-mail:
 
 

Inelastic Light Scattering and Light Emission of Individual and Suspended Carbon Nanotubes

Y. Yin, S. Cronin, A. Walsh, A. Stolyarov, M. Tinkham, A. Vamivakas, R.R Bacsa, S. Ünlü, B. Goldberg, A. Swan and W. Bacsa
Boston University, US

Keywords:
carbon nanotubes, inelastic light scattering, Raman

Abstract:
Carbon nanotubes represent an important model system in nanoscience and nanotechnology. The tubes are essentially one-dimensional, typically 1-2 nm in diameter and up to 1 mm long and combine nanoscale and macroscopic physics. Besides their extreme mechanical and thermal properties, the electronic conductance can vary from insulating to metallic depending on the tube chirality or helicity. Despite the large amount of research carried out on nanotubes, there are several key aspects of the electronic and optical properties that are poorly understood. These include the sensitivity of nanotubes to their local environment such as their light emitting and absorption properties. There is a large discrepancy between theoretical models and the observed emission spectra. Most current emission data comes from ensemble measurements of tubes surrounded by a surfactant, suspended in a solution. We present resonant inelastic light scattering (Raman) studies of individual tubes suspended in air. These results differ significantly from earlier measurements from tubes in solution. The energy down-shift and resonance profile indicate exciton than rather band edge optical excitations. Individual and suspended tubes are mapped spatially. We will discuss the experimental results with respect to results obtained from solution measurements.

Back to Program

Sessions Sunday Monday Tuesday Wednesday Thursday Authors

Nanotech 2005 Conference Program Abstract

 
Gold Sponsors
Nanotech Gold Sponsors
Silver Sponsors
Nanotech Silver Sponsors
Gold Key Sponsors
Nanotech Gold Key Sponsors
Nanotech Ventures Sponsors
Nanotech Ventures Sponsors
Sponsors
Nanotech Sponsors
News Headlines
NSTI Online Community
 
 

© Nano Science and Technology Institute, all rights reserved.
Terms of use | Privacy policy | Contact