ИСТИНА

The aim of this work is to develop new materials for the semiconducting polymers/inorganic NPs hybrid SC with stable percolating dispersion of NPs in the polymer matrix. To perform a targeted design of such materials, including prediction of the manufacturing conditions, we use both experimental and computer simulation methods. In the experimental studies, methods for tuning morphology of conjugated polymer blend with NP as the active layer of solar cell for high performance are explored taking P3HT blend with PbS-NP as the subject for experimental studies since P3HT and PbS-NP have strong absorption in the visible region and are stable as well as low cost. The morphology with bicontinuous networks for polymer donor is reached by adding high boiling point solvent as additive in the solution for these two components. The power conversion efficiency of 5.26% is obtained, which is the new record in P3HT:PbS-NP system. Coarse-grained computer simulation models for hybrid systems of conjugated homopolymer with inorganic nanoparticles have been developed. Preliminary results for phase diagrams in bulk and in thin films have been obtained, which show either a homogeneous distribution of NPs in homopolymer matrix or a pronounced macrophase separation. We plan to consider other types of polymers (e.g., copolymers) and hope to obtain well-separated percolating (i.e., conductive) networks (i.e., homogeneously distributed clusters contacting each other) of NPs in a (co)polymer matrix.