一类基于三蝶烯骨架的电池受体材料
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摘要
芘衍生物是一种常被用于有机发光领域的大π面的分子,其平面结构有利于分子间的电子迁移,但π平面结构也不可避免的会引起分子聚集,导致分子间的电子转移,从而降低分子内的电子转移概率,这将限制其在有机太阳能电池受体材料领域的应用。三蝶烯是一种具有特殊空间三维结构的受体材料,为了降低分子间聚集现象,本文以三蝶烯为核,芘衍生物为臂,合成并表征了一系列风车构型的分子。结果表明,TM3分子在常见的有机溶剂中有较好的溶解性,其主要的吸光区域位于230～440nm处,可以作为潜在的有机太阳能电池受体材料。
Pyrene derivatives have large π planes which were often used in the field of organic photovoltaic field. Although the large plane structures of pyrene derivatives were suitable for electron transfer between molecules,it also could cause intermolecular aggregation and increase electron transfer between molecules,thus reducing the intramolecular electron transfer probability,which limits its application in acceptor materials of organic solar cells. Tripterene is usually used as the acceptor material for its special spatial three-dimensional structure. In order to reduce the phenomenon of intermolecular aggregation,a series of compounds with windmill configuration was designed and characterized,in which the tripylene unit and the pyrene derivatives were chosed as the core and arms respectively. The results showed that TM3 has good solubility in common organic solvents,and its main absorption region were located at 230 ～ 440 nm,which can be used as the potential acceptor materials for organic solar cells.
Pyrene derivatives have large π planes which were often used in the field of organic photovoltaic field. Although the large plane structures of pyrene derivatives were suitable for electron transfer between molecules,it also could cause intermolecular aggregation and increase electron transfer between molecules,thus reducing the intramolecular electron transfer probability,which limits its application in acceptor materials of organic solar cells. Tripterene is usually used as the acceptor material for its special spatial three-dimensional structure. In order to reduce the phenomenon of intermolecular aggregation,a series of compounds with windmill configuration was designed and characterized,in which the tripylene unit and the pyrene derivatives were chosed as the core and arms respectively. The results showed that TM3 has good solubility in common organic solvents,and its main absorption region were located at 230 ～ 440 nm,which can be used as the potential acceptor materials for organic solar cells.
引文
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[2]王传坤,毛与婷,李萌,等.有机太阳能电池的研究进展[J].可再生资源,2014,32(11):1597-1602.
[3]Cheng Y J,Yang S H,Hsu C S.Synthesis of conjugated polymers for organic solar cell applications[J].Chemcial Reviews,2009,109(11):5868-5923.
[4]Heeger A J.25th anniversary article:Bulk heterojunction solar cells:understanding the mechanism of operation[J].Advanced Materials,2014,26(1):10-27.
[5]He Y,Li Y.Fullerene derivative acceptors for high performance polymer solar cells[J].Physical Chemistry Chemical Physics,2011,13(6):1970-1983.
[6]李永舫.聚合物太阳能电池高效共轭聚合物给体和富勒烯受体光伏材料[J].高分子通报,2011(10):33-49.
[7]Michael M,Stefanie S,Mila C,et al.Two-step synthesis of hexaammonium triptycene:an air-stable building block for condensation reactions to extended triptycene derivatives[J].The Journal of Organic Chemistry,2011,76:6389-6393.
[8]李建美.噻吩取代氮杂环衍生物的合成与表征[C].北京:北京理工大学,2012.
[9]Bernd K,Frank R,Michael M.Rigid-extended triptycenes via a hexaketone precursor[J].Organic Letters,2014,16,704-707.
[10]Li G,Zhu R,Yang Y.Polymer solar cells[J].Nature Photonics,2012,6(3):153-161.