Elucidation of the electronic structure of semiconducting single-walled carbon nanotubes by electroabsorption spectroscopy

作者：Zhao Hongbo^*; Mazumdar Sumit

来源：Physical Review Letters, 2007, 98(16): 166805.

DOI：10.1103/PhysRevLett.98.166805

We report benchmark calculations of electroabsorption in semiconducting single-walled carbon nanotubes that provide motivation to perform electroabsorption measurement on these systems. We show that electroabsorption can detect the continuum bands in different energy manifolds. Direct determination of the binding energies of excitons in higher manifolds thereby becomes possible. We also find that electroabsorption can provide evidence for Fano-type coupling between the second exciton and the lowest continuum band states.

• 出版日期2007-4-20