[MOS] Louis Brus, Columbia University, November 9, 2004

[Vinnie Russo]

Dear Colleagues,

The G.R. Harrison Spectroscopy Laboratory and the Department of Electrical 
Engineering and Computer Science would like to invite you to the next 
seminar in our series on Modern Optics and Spectroscopy.


Date & Time:            Tuesday, November 9, 12 noon - 1 PM
Location:               Grier Room (34-401)
Speaker:                Louis Brus, Columbia University
Title:                  Rayleigh scattering from single carbon nanotubes

Refreshments will be served following the talk.

Abstract:
Louis Brus, Columbia University
Rayleigh scattering from single carbon nanotubes
The research group at Columbia University investigated carrier dynamics in 
SWNTs in micellar solution. They found that nonradiative Auger 
recombination is an important mechanism of fluorescence quenching in SWNTs. 
At low pH, nanotube surface endoperoxides protonate and introduce holes 
that quench the luminescence. In order to characterize electronic structure 
of SWNTs at the single-tube level, we developed a method to detect 
white-light Rayleigh scattering from individual tubes.


Vinnie Russo * vrusso at mit.edu  *  Office Manager
MIT; G.R. Harrison  Spectroscopy Laboratory
77 Mass. Ave., 6-014  *  Cambridge, MA  02139
(v) 617-253-9774  *  (f) 617-253-4513 
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