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A carbon-oxygen-bridged ladder-type building block for efficient donor and acceptor materials used in organic solar cells

《科学通报:英文版》2017年 第19期 | Zuo Xiao Fan Liu Xinjian Geng Jianqi Zhang Shizhe Wang Yujun Xie Zhen Li Huai Yang Yongbo Yuan Liming Ding   Center for Excellence in Nanoscience (CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS) National Center for Nonoscience and Technology Beijing 100190 China Department of Chemistry Wuhan University Wuhan 430072 China College of Engineering Peking University Beijing 100871 China School of Physics & Electronics Central South University Changsha 410083 China
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摘 要:A carbon-oxygen-bridged ladder-type donor unit(CO5) was invented and prepared via an ‘‘intramolecular demethanolization cyclization' approach. Its single crystal structure indicates enhanced planarity compared with the carbon-bridged analogue indacenodithiophene(IDT). Owing to the stronger electron-donating capability of CO5 than IDT, CO5-based donor and acceptor materials show narrower bandgaps. A donor-acceptor(D-A) copolymer donor(PCO5TPD) and an A-D-A nonfullerene acceptor(CO5IC) demonstrated higher performance than IDT-based counterparts, PIDTTPD and IDTIC, respectively. The better performance of CO5-based materials results from their stronger light-harvesting capability and higher charge-carrier mobilities.
【分 类】【数理科学和化学】 > 化学 > 无机化学 > 金属元素及其化合物 > 第Ⅷ族金属元素及其化合物 > 铁系金属元素 > 铁Fe
【关键词】 受体材料 有机太阳能电池 氧桥 结构块 梯形 施主 载流子迁移率
【出 处】 《科学通报:英文版》2017年 第19期 1331-1336页 共6页
【收 录】 中文科技期刊数据库