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Updated: Jun 13, 2026

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Donor-acceptor polymers based on multi-fused heptacyclic structures: synthesis, characterization and photovoltaic
Jhong-Sian Wu1, Yen-Ju Cheng, Martin Dubosc
1Department of Applied Chemistry, National Chiao Tung University, 1001 Ta Hsueh Road, Hsin-Chu, 30010 Taiwan.
Abstract:
We report here two novel 2,7-fluorene- and 2,7-carbazole-based conjugated polymers PFDCTBT and PCDCTBT containing ladder-type heptacyclic structures with forced planarity. PCDTBT shows excellent solubility, low band gap and high hole mobility, leading to a power conversion efficiency of 3.7%.
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