Tuning the properties of ruthenium bipyridine dyes for solar cells by substitution on the ligands—characterisation of bis[4,4′-di(2-(3-methoxyphenyl)ethenyl)-2,2′-bipyridine][4,4′-dicarboxy-2,2′-bipyridine]ruthenium(ii) dihexafluorophosphate
作者:Viviane Aranyos、Johan Hjelm、Anders Hagfeldt、Helena Grennberg
DOI:10.1039/b208807j
日期:2003.3.24
reference system with bis[2,2′-bipyridine][4,4′-dicarboxy-2,2′-bipyridine]ruthenium(II) (2). The system with 1 displays a broader and red-shifted UV-vis absorption compared to that with 2. Moreover, the system with 1 is less sensitive towards the water content in the electrolyte, and an adsorbed monolayer of 1 remains on the electrode surface after days even in aqueous NaOH (0.1 M), while 2 desorbs immediately
新型染料配合物双[4,4'-二(2-(3-甲氧基苯基)乙烯基)-2,2'-联吡啶] [4,4'-二羧基-2,2'-联吡啶]二氟磷酸钌(II) (1)已经制备,其通过吸收光谱表征并且被吸附到纳米晶体TiO 2电极上。通过吸收光谱,电化学和光电化学研究了所得系统,并将结果与含双[2,2'-联吡啶] [4,4'-二羧基-2,2'-联吡啶]钌的参考系统的结果进行了比较(II)(2)。与2相比,具有1的系统显示出更宽泛的红移UV-vis吸收。而且,系统具有1对电解质中的水分敏感度较低,几天后甚至在NaOH水溶液(0.1 M)中,吸附的单分子膜1仍保留在电极表面,而2则立即解吸。