[institut] QSG seminar na FF

[Antun Balaz]

Utorak, 11. april 2006. godine u 13:00
Fizicki fakultet, Amfiteatar 661

QSQ seminar: Excitons in Carbon Nanotubes

Dr Janina Maultzsch
Technical University, Berlin

Abstract
The optical spectra of carbon nanotubes have been interpreted in terms of 
single-particle transitions until recently. In this talk I will show that 
the optical excitations are due to excitons, i.e. electron-hole pairs bound 
by Coulomb interaction. By two-photon luminescence excitation spectroscopy, 
we address exciton states with different symmetry and determine the binding 
energy to be around 400 meV.



-----
Antun Balaz
Research Assistant
E-mail: antun at phy.bg.ac.yu
Web: http://scl.phy.bg.ac.yu/

Phone: +381 11 3160260, Ext. 152
Fax: +381 11 3162190

Scientific Computing Laboratory
Institute of Physics, Belgrade
Serbia and Montenegro
-----