One-dimensional semiconductor in a polar solvent: Solvation and low-frequency dynamics of an excess charge carrier

Abstract

Due to solvation, excess charge carriers on 1d semiconductor nanostructures immersed in polar solvents undergo self-localization into polaronic states. Using a simplified theoretical model for small-diameter structures, we study low-frequency properties of resulting 1d adiabatic polarons. The combined microscopic dynamics of the electronic charge density and the solvent leads to macroscopic Langevin dynamics of a polaron and to the appearance of local dielectric relaxation modes. Polaron mobility is evaluated as a function of system parameters. Numerical estimates indicate that the solvated carriers can have mobilities orders of magnitude lower than the intrinsic values.

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References in corpus (1)

• Scaling of excitons in carbon nanotubes

Cited by in corpus (5)

• Model ab initio study of charge carrier solvation and large polaron formation on conjugated carbon chains
• Optical absorption from solvation-induced polarons on nanotubes
• Polarons and charge carrier solvation on conjugated carbon chains: A comparative ab initio study
• A comparative ab initio study of neutral and charged kink-solitons on conjugated carbon chains
• Solvation-induced one-dimensional polarons and electron transfer