Departamento de Química Orgánica, ICMA, Universidad de Zaragoza-CSIC, E50009 Zaragoza, Spain.
Org Lett. 2012 Feb 3;14(3):752-5. doi: 10.1021/ol203298r. Epub 2012 Jan 20.
We have synthesized a series of four new promising D-π-A conjugated organic sensitizers with a proaromatic 4H-pyran-4-ylidene as a donor, a thiophene ring in the bridge, and 2-cyanoacrilic acid as acceptor. Comparison between different donor substituents and the modification of the thiophene ring resulted in molar extinction coefficients as high as 36399 M(-1) cm(-1) at 551 nm. The photovoltaic properties of the DSSCs demonstrate power conversion efficiencies as high as 5.4%.
我们合成了一系列四个新的有前景的 D-π-A 共轭有机敏化剂，以具有芳香性的 4H-吡喃-4-亚基作为供体，噻吩环作为桥，2-氰基丙烯酸作为受体。不同供体取代基的比较和噻吩环的修饰导致在 551nm 处摩尔消光系数高达 36399M(-1)cm(-1)。DSSC 的光伏性能显示出高达 5.4%的功率转换效率。
