  In this work electronic structures and optical properties of
organic-inorganic exciton and polaritons in two-dimensional heterostructures
combining both organic and semiconductor materials are studied. In those
systems, Wannier-Frenkel hybrid exciton has unique and interesting properties
that can improve the efficiency of optical materials. When an
organic-semiconductor combined heterostructure is illuminated by high-intensity
electromagnetic radiation with the frequency of the photons at or near the
resonance frequency of the Wannier-Frenkel exciton, we obtain a macroscopically
occupied system of hybrid polaritons. We will theoretically determine
electronic structure, energy and dispersion relation of the hybrid excitons and
polaritons. By analyzing the parameters of the systems and the interactions
between the Wannier and Frenkel excitons and the photons, we then discuss the
conditions for hybridization.
