Synthesis and Characterization of 2D-D-π-A-Type Organic Dyes Bearing Bis(3,6-di-<i>tert</i>-butylcarbazol-9-ylphenyl)aniline as Donor Moiety for Dye-Sensitized Solar Cells
作者:Tanika Khanasa、Nittaya Jantasing、Somphob Morada、Nararak Leesakul、Ruangchai Tarsang、Supawadee Namuangruk、Tinnagon Kaewin、Siriporn Jungsuttiwong、Taweesak Sudyoadsuk、Vinich Promarak
DOI:10.1002/ejoc.201201479
日期:2013.5
2D-D-π-A-type organic dyes, namely CCTTnA (n = 1–3), bearing bis(3,6-di-tert-butylcarbazol-9-ylphenyl)aniline as an electron-donor moiety (2D-D), oligothiophene segments with a number of thiophene units from one to three units as π-conjugated spacers (π), and cyanoacrylic acid as the electron acceptor (A) were synthesized and characterized as dye sensitizers for dye-sensitized solar cells (DSSCs). These
一系列新型 2D-D-π-A 型有机染料,即 CCTTnA(n = 1-3),带有双(3,6-二-叔丁基咔唑-9-基苯基)苯胺作为电子供体部分(2D-D),合成了具有 1 到 3 个噻吩单元作为 π 共轭间隔基 (π) 和氰基丙烯酸作为电子受体 (A) 的低聚噻吩链段,并将其表征为染料敏化太阳能的染料敏化剂细胞(DSSC)。这些化合物表现出高的热稳定性和电化学稳定性。对这些染料的详细研究表明,外围咔唑供体 (2D) 对溶液中染料和吸附在 TiO2 膜上的染料的红移吸收光谱以及入射单色光子到电流转换效率的加宽都有有益影响(IPCE)DSSC 的光谱,从而提高能量转换效率 (η)。在这些染料中,CCTT3A 显示出最好的光伏性能,最大入射单色光子到电流转换效率 (IPCE) 值为 80%,短路光电流密度 (Jsc) 为 9.98 mA cm-2,开路0.70 V 的电压 (Voc) 和 0.67