ИСТИНА

In the report, we discuss an idea of using the fact that depending on the chemical structure of AB diblock copolymer, the thermodynamically stable domains with cubic symmetry of the double gyroid type, having three-dimensional periodicity in space, can be formed during microphase separation of A and B blocks. Therefore, the solar cell devices, in which these structures are formed, will have well-organized separate paths for transport of electrons and holes and, as a result, the high power conversion efficiency. We checked this idea in the framework of the mesoscale simulations with using dissipative particle dynamics methods. The obtained results show us that by the proper choice of the type of surface modifier of NPs (which controls the compatibility of NPs with the polymer matrix), of the chemical structure of the conjugated copolymer blocks and of their length, we can control the morphology of the photoactive layer of SC devices. The range of parameters at which the domains with cubic symmetry and percolation for all components are formed, can serve as a reference points for the experimental synthetize of CP to obtain PAL with the optimal mesh of electrically conductive paths needed to create highly efficient PSC device.