含三氟甲基苯受体的染料敏化剂的合成及性能

Synthesis and Property of Dye-Sensitizers with Trifluoromethyl Benzene Acceptors

以三苯胺为供体,设计、合成了3个分别以三氟甲基苯基氰基丙烯酸、三氟甲基苯甲酸、三氟甲基苯酚新型受体的染料敏化剂ANPH1、ANPH2、ANPH3,测试、探讨了他们的紫外吸收光谱、电化学性能、光电能,并运用密度泛函理论(DFT)方法对其几何结构进行了优化计算。结果表明,ANPH2由于以酚为锚合基团,染料敏化剂-TiO_2电子传输谱带(DTCT)作用使得其短路电流密度JSC较大,获得较高光电转换效率效率为0.81%(J_(sc)=2.09 mA/cm^2,开路电压Uoc=0.59 V,填充因子FF=0.65)。

Three new dye-sensitizers ANPH1, ANPH2 and ANPH3 with trifluoromethyl benzoic acid, trifluoromethyl phenol and trifluoromethyl phenyl cyano acrylic acids as acceptors respectively were designed and synthesized using triarylamine as donor. The ultraviolet absorption spectrum, electrochemical properties and photovoltaic performance were test and discussed, and their geometric structure were optimized and calculated using the density functional theory(DFT) method. Result showed that because ANPH2 with phenol as the anchor group, dye-sensitizer-TiO 2 electronic transmission band(DTCT) function made the short circuit current density JSC bigger and had a higher efficiency of photoelectric conversion efficiency of 0.81%(JSC= 2.09 m A/cm2, open circuit voltage Uoc= 0.59 V, fill factor FF = 0.65)