| D-A-π-A organic sensitizers containing a benzothiazole moiety as an additional acceptor for use in solar cells |
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| 作者姓名： | ZENG Juan ZHANG TengLong ZANG XuFeng KUANG DaiBin MEIER Herbert CAO DeRong |
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| 作者单位： | School of Chemistry and Chemical Engineering, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology;MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University;Institute of Organic Chemistry, University of Mainz |
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| 基金项目： | supported by the National Natural Science Foundation of China (20872038, 20873183, 21072064);the Fund from Guangzhou Science and Technology Project, China (2012J4100003) |
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| 摘 要： | 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.
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| 关 键 词： | organic dye dye-sensitized solar cell D-A-π-A benzothiazole |
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