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A croconic acid-derived narrow band gap conjugated microporous polymer

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CHEMICAL COMMUNICATIONS
卷 59, 期 57, 页码 8846-8849

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ROYAL SOC CHEMISTRY
DOI: 10.1039/d3cc01701j

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Croconic acid, a highly electron-deficient building block, was used to create a conjugated microporous polymer (CTPA). The CTPA possessed strong donor-acceptor interactions, resulting in near-IR absorption, a narrow bandgap, and high electrical conductivity upon doping. Compared to its squaric acid counterpart (STPA), CTPA exhibited superior optical, electronic, and electrical properties.
Croconic acid, a novel highly electron-deficient building block, was introduced into a conjugated microporous polymer (CTPA). The CMP possesses strong donor-acceptor interactions, which resulted in near-IR absorption (red edge similar to 1350 nm), a narrow bandgap (< 1 eV) and high electrical conductivity upon doping (0.1 S m(-1)). Compared to the squaric acid congener (STPA), CTPA showed superior optical, electronic and electrical properties.

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