Morphology-Driven Exciton Diffusion Enhances the Charge Generation in Bilayer Organic Solar Cells
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Bilayer organic solar cells (b-OSCs) based on non-fullerene acceptors (NFAs) have reached the efficiencies of bulk heterojunction (BHJ) devices, owing to their long exciton diffusion lengths and improved interfacial control. However, further efficiency gains h... ...