Y-type co-sensitizer taking cyanoacetic acid as receptor and preparation method thereof

The invention discloses a Y-type co-sensitizer taking cyanoacetic acid as a receptor and a preparation method thereof. The structural formula of the co-sensitizer is shown as the specification, wherein R represents C1-C10 alkyl or phenyl. The preparation method of the co-sensitizer is simple, the molar extinction coefficient in an ultraviolet region is high, the absorption of a ruthenium dye-sensitized solar cell in the ultraviolet region can be improved, and the short-circuit current density and the photoelectric conversion efficiency of the ruthenium dye-sensitized solar cell are further improved. 本发明公开了一种氰基乙酸为受体的Y型共敏剂及其制备方法，该共敏剂的结构式如下：式中R代表C1～C10烷基或苯基。该共敏剂制备方法简单，在紫外区摩尔消光系数高，可提高钌染料敏化太阳能电池在紫外区的吸收，进而提高钌染料敏化太阳能电池的短路电流密度和光电转换效率。