Dependence of exciton transition energy of single-walled carbon nanotubes on surrounding dielectric materials

Abstract

We theoretically investigate the dependence of exciton transition energies on dielectric constant of surrounding materials. We make a simple model for the relation between dielectric constant of environment and a static dielectric constant describing the effects of electrons in core states, $\sigma$ bonds and surrounding materials. Although the model is very simple, calculated results well reproduce experimental transition energy dependence on dielectric constant of various surrounding materials.

5pages, 4 figures

References in corpus (3)

• Exciton binding energies in carbon nanotubes from two-photon photoluminescence
• Electron-electron interaction effects on optical excitations in semiconducting single-walled carbon nanotubes
• Cross-polarized optical absorption of single-walled nanotubes probed by polarized photoluminescence excitation spectroscopy