Abstract A donor–acceptor (D–A) polymer, PTBFDO-BDD, based on thieno[2,3-f]benzofuran (TBF) with 4-dodecyl thienyl chains, was designed and synthesized. The optical, electrochemical, photovoltaic and device active layer morphology properties of the new polymer were investigated. With the structure of indium tin oxide (ITO)/poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS)/PTBFDO-BDD:ITIC/PDINO/Al, polymer solar cells device exhibited a power conversion efficiency (PCE) of 7.15% (AM1.5G, 100 mW cm−2) with VOC of 0.803 V, JSC of 14.71 mA cm−2, and FF of 60.57%. This work demonstrates that thieno[2,3-f]benzofuran-based conjugated polymers are promising as polymer solar cells donor materials.

中文翻译：

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用于无富勒烯太阳能电池的基于噻吩并[2,3-f]苯并呋喃的供体-受体聚合物

摘要 设计并合成了一种基于具有 4-十二烷基噻吩基链的噻吩并[2,3-f]苯并呋喃 (TBF) 的供体-受体 (D-A) 聚合物 PTBFDO-BDD。研究了新聚合物的光学、电化学、光伏和器件活性层形貌特性。具有氧化铟锡（ITO）/聚（3,4-亚乙基二氧噻吩）：聚苯乙烯磺酸盐（PEDOT：PSS）/PTBFDO-BDD：ITIC/PDINO/Al的聚合物太阳能电池装置表现出功率转换效率（PCE） 7.15% (AM1.5G, 100 mW cm−2)，VOC 为 0.803 V，JSC 为 14.71 mA cm−2，FF 为 60.57%。这项工作表明，基于噻吩并 [2,3-f] 苯并呋喃的共轭聚合物作为聚合物太阳能电池供体材料很有前景。