Electronic processes in TTF-derived complexes studied by IR spectroscopy

We focus our attention on the plasma-edge-like dispersion of the reflectanc e spectra of the selected bis(ethylenodithio)-etrathiafulvalene (BEDT-TTF)- derived organic conductors. The standard procedure to determine the electro n transport parameters in low-dimensional organic conductors consists of fi tting the appropriate theoretical models with the experimental reflectance data. This procedure provides us with basic information like plasma frequen cy, the optical effective mass of charge carriers, their number, mean free path and damping constant. Therefore, it is concluded that the spectroscopy is a powerful tool to study the electronic processes in conducting organic solids. (C) 2001 Elsevier Science BN. All rights reserved.