Dyes and Pigments ( IF 4.5 ) Pub Date : 2020-09-10 , DOI: 10.1016/j.dyepig.2020.108845 Alexandra Bogdan , Lorant Szolga , Gavril-Ionel Giurgi , Andreea Petronela Crişan , Diana Bogdan , Sarinya Hadsadee , Siriporn Jungsuttiwong , Riccardo Po , Ion Grosu , Jean Roncali
The synthesis of a dyad involving a small arylamine-dicyanovinyl push-pull system as donor block and C60 fullerene as acceptor, connected by a flexible insulating linker formed by esterification of a β-hydroxymethylthiophene spacer is described. Unlike previously reported parent dyads with linkers connected at the 2-position of the thienyl spacer, this mode of connection allows the preservation of a free carbaldehyde group and thus the possibility to modulate the energy levels of the push-pull donor block. The electronic properties of the new dyad are analyzed by UV–Vis absorption spectroscopy, cyclic voltammetry, and theoretical calculations. A preliminary evaluation of this compound as active material for single-material organic solar cells is reported and discussed with reference to the mode of linkage of donor and C60 blocks.
中文翻译:
基于三芳基胺的推挽系统中的结构与性质的关系-C 60二聚体为单材料有机太阳能电池的活性材料
涉及小的芳基胺-双氰基乙烯基推挽系统作为供体嵌段和C 60的二元化合物的合成描述了一种富勒烯作为受体,其通过由β-羟甲基噻吩间隔基的酯化形成的柔性绝缘接头连接。与先前报道的在噻吩基间隔基的2位连接了连接子的母体二元体不同,这种连接方式可以保留游离的甲醛基,从而可以调节推挽式供体嵌段的能级。通过UV-Vis吸收光谱,循环伏安法和理论计算来分析新二元体的电子性质。报道了该化合物作为单一材料有机太阳能电池活性材料的初步评估,并参考了施主与C 60嵌段的连接方式进行了讨论。