Optical properties of the hybrid nanocomposites consisting of poly-$n$-phenylvinylene and cadmium sulfide

Thin-film hybrid nanocomposites based on poly-$n$-phenylvinylene with various contents of the CdS semiconductor nanoparticles are obtained using the pyrolytic polymerization of dichloro-$n$-xylene from the gas phase and the simultaneous sedimentation of the CdS vapor with the subsequent thermal processing of the precursor. The structure of the nanocomposite is studied, and the optical properties of the materials are analyzed. It is demonstrated that a variation in the concentration of the inorganic component in the polymer matrix leads to a variation in the maximum fluorescence wavelength and optical band gap. The material parameters (degree of conjugation of poly-$n$-phenylvinylene, band gap, Huang-Rhys factor, Stokes shift, and vibronic energy of molecules) are determined.