Ratio problem in single carbon nanotube fluorescence spectroscopy

摘要: The electronic band gaps measured in fluorescence spectroscopy on individual single wall carbon nanotubes isolated within micelles show significant deviations from the predictions of one electron theory. We resolve this problem by developing a theory electron-hole interaction photoexcited states. one-dimensional character and tubular structure introduce novel relaxation pathway for carriers above fundamental edge. Analytic expression energies line shapes higher subband excitons are derived, comparison with experiment is used to extract value screened interaction.