writer：Chaoying Hu, Weiping Chen, Haicui Yao, Xiaojie Ren, Hailei Zhang*, Hongchi Zhao*, Y. Wu*, X. Ba
keywords：ladder-type, cyclization, perylen, pyrene, Suzuki reaction
source：期刊
specific source：Macromolecular Chemistry and Physics
Issue time：2018年

Ladder-type polyacene (FP2) and model compounds (1c and 2c) with perylene-fused-pyrene structures were acheived in high yields by using a Pd(PPh3)2Cl2-catalyzed Suzuki reaction followed by cyclization with FeCl3. The obtained model compounds and polyacene display desirable solubility in commonly used solvents and high thermal stability. Fluorescences peak at 614 nm was observed in diluted CH2Cl2 solution containing polyacene. Furthermore, the as-prepared model compound (2c) and polyacene (FP2) were employed as acceptors bulk-heterojunction (BHJ) solar with PTB7-Th as electrodonor cells. The 2c-based solar cell demonstrated a power conversion efficiency of 3.25%.