Optical properties of polycarbonate layers doped with triphenylamine and chlorotricarbonyl diimine rhenium complex have been investigated. The samples have been prepared by spin coating on quartz glass and indium tin oxide (ITO) coated glass substrates. Root mean square surface roughness of the films obtained by atomic force microscopy is low (/~3 Å). Optical functions of ITO and doped polymer layer for two different dopant concentrations have been determined by spectroscopic ellipsometry in the spectral range from 1.55 to 4.1 eV. The absorption spectra of the chlorotricarbonyl diimine rhenium complex dissolved in chloroform and toluene have also been measured.