Energy transfer from a conjugated polymer to a quantum dot in the semiclassical approach

We have studied the Forster energy transfer in the hybrid system of semiconductor nanocrystals and a conjugated polymer composite. The electronic energy transfer from a PPV-type polymer to a PbS nanocrystal is examined by employing a semiclassical approach through the calculation of Joule losses. In order to obtain the Forster energy transfer rate, we employed a microscopic description of a simplified exciton in the polymer and a macroscopic description of the quantum dot. The typical transfer time is the order of ∼10 ps, which is shorter than the relaxation time of the excitation of an isolated conjugated polymer.