The effect of furan linkers on the properties of cyclic thiourea functionalized triphenylamine dye sensitizers
作者:Liyuan Dong、Ran Chen、Qiang Weng、Zhongwei An、Xinbing Chen、Pei Chen
DOI:10.1016/j.dyepig.2017.01.014
日期:2017.4
dye (with a 14 nm red shift in the absorption maximum). The photovoltaic measurements show that the conversion efficiencies of the furan, bifuran and furn-thiphene linked dyes are 6.81% (Jsc = 13.84 mA cm−2, Voc = 726.79 mV and FF = 0.68); 7.44% (Jsc = 14.48 mA cm−2, Voc = 744.52 mV and FF = 0.69); 7.66% (Jsc = 16.71 mA cm−2, Voc = 717.83 mV and FF = 0.64), respectively. The twist angles of the dyes between
设计并合成了三种基于环硫脲官能化的三苯胺的敏化剂,它们含有呋喃,双呋喃和呋喃-噻吩连接单元,并以氰基丙烯酸为受体基团。研究了光物理性质,电化学性质和DSSC性质。具有呋喃-噻吩接头的染料的UV-Vis吸收光谱比联噻吩染料的UV-Vis吸收光谱更宽(最大吸收红移14 nm)。光电测量表明,呋喃,双呋喃和呋喃噻吩连接的染料的转化效率为6.81%(J sc = 13.84 mA cm -2,V oc = 726.79 mV和FF = 0.68);7.44%(J sc = 14.48 mA cm -2,V oc = 744.52 mV和FF = 0.69);分别为7.66%(J sc = 16.71 mA cm -2,V oc = 717.83 mV和FF = 0.64)。通过DFT计算来计算染料在供体和π-接头之间的扭曲角,并与它们的光物理吸收光谱相关。通过与已知的联噻吩间隔基染料进行比较,还讨论了光电性能。