  A model is proposed to study the hybrid exciton in a quantum dot-dendrimer
systems. The semiconductor organic hybrid exciton is studied using a "real
space" Green's function method and a diagrammatic technique. The energy of the
hybrid exciton as well as the Green function matrix elements have been
calculated for different quantum dot-dendrimer systems, and the method can be
applied for systems with different structures. Using the double-time Green's
functions the optical processes can be calculated. The optical properties of
the systems are controllable by the size and structure of the QD-dendrimer
systems.
