D-A-π-A organic sensitizers containing a benzothiazole moiety as an additional acceptor for use in solar cells  

作　　者：ZENG Juan ZHANG TengLong ZANG XuFeng KUANG DaiBin MEIER Herbert CAO DeRong 

机构地区：[1]School of Chemistry and Chemical Engineering, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology [2]MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University [3]Institute of Organic Chemistry, University of Mainz

出　　处：《Science China Chemistry》2013年第4期505-513,共9页中国科学（化学英文版）

基　　金：supported by the National Natural Science Foundation of China (20872038, 20873183, 21072064);the Fund from Guangzhou Science and Technology Project, China (2012J4100003)

摘　　要：Three novel triphenylamine-based D-A-r-A-featured dyes （Zl-Z3） have been designed, synthesized and characterized for use in dye-sensitized solar cells. Benzothiazole was incorporated as an additional acceptor, which greatly enhanced the molar ex- tinction coefficient of the dyes. Various conjugated linkers, such as benzene, furan and thiophene, were also introduced to con- figure the novel D-A-n-A framework in order to prolong electron flow and active transportation. Among all dyes, Z2 contain- ing a thiophene linker exhibited the maximum overall conversion efficiency （r/） of 4.16% （Jsc = 9.27 mA cm-2, Voc = 642 mV, FF = 0.70） under standard global AM 1.5 G solar condition.Three novel triphenylamine-based D-A-π-A-featured dyes (Z1-Z3) have been designed, synthesized and characterized for use in dye-sensitized solar cells. Benzothiazole was incorporated as an additional acceptor, which greatly enhanced the molar extinction coefficient of the dyes. Various conjugated linkers, such as benzene, furan and thiophene, were also introduced to configure the novel D-A-π-A framework in order to prolong electron flow and active transportation. Among all dyes, Z2 containing a thiophene linker exhibited the maximum overall conversion efficiency (η) of 4.16% (Jsc = 9.27 mA cm-2 , Voc = 642 mV, FF = 0.70) under standard global AM 1.5 G solar condition.

关 键 词：organic dye dye-sensitized solar cell D-A-Tr-A BENZOTHIAZOLE 

分 类 号：TM914.4[电气工程—电力电子与电力传动] O626.21[理学—有机化学]