摘要
Vinylene-bridged covalent organic frameworks(V-COFs),as fully conjugated polymer structures,offer promising prospects in optoelectronics.However,challenges such as poor bond reversibility and limited monomer availability persist.In this study,we introduce Ph-DPP-COF,synthesized from a diketopyrrolopyrrole(DPP)core with methyl groups via a Knoevenagel condensation reaction.The resulting material features an AA stacking mode,large nanopores,and broad light absorption across the ultraviolet to near-infrared spectrum.Notably,Ph-DPP-COF achieves a photothermal conversion efficiency of 53%under 660 nm laser irradiation.Its exceptional mechanical processability also offers considerable plasticity for practical applications.These findings suggest that Ph-DPP-COF not only provides a novel approach for developing photothermal conversion materials but also holds promise for future energy conversion and storage technologies.
基金
supported by the National Natural Science Foundation of China(NSFC,No.22202024).
