| Abstract [eng] |
The focus of this dissertation encompasses several research areas within the development of organic solar cells (OSC), ranging from charge transport and recombination processes and their characterization methods to blend morphology and its stabilization. It addresses the enhancement of established methods for analyzing charge carrier recombination in OSCs, particularly aiming to establish the dependency of recombination rates on charge carrier concentration and the influence of processing additives. Additionally, this work delves into the development of cross-linkable hole-transporting materials, which are designed to serve dual roles: as insulating layers for the active layer and as matrices for donor-acceptor blends, thereby helping to prevent morphological degradation over time. Furthermore, the thesis investigates novel fluorene-core bipolar charge-transporting materials, which can exhibit balanced hole and electron mobilities. These materials hold potential for use in organic photovoltaic devices, donor-acceptor blends to enhance overall device performance by optimizing charge transport. |
