Tuning Molecular Interaction in Polymer Solar Cells via a Multifunctional Discotic Component to Enhance Photovoltaic Response

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Polymer Solar Cells In article number 2200101, Xiangfei Kong, Zhiqun He, and co-workers discovered that a self-organized, discotic liquid crystal as a third component in a donor-acceptor blend is able to alter Flory–Huggins molecular interaction, leading to better phase separations. This balances the carrier mobilities, reduces the density of defect states, and improves the device performance.