期刊
ACS APPLIED MATERIALS & INTERFACES
卷 6, 期 9, 页码 6697-6703出版社
AMER CHEMICAL SOC
DOI: 10.1021/am500391w
关键词
dye-sensitized solar cell; anchoring group; salicylic acid; zinc porphyrin dye
资金
- National Natural Science Foundation of China [NSFC 21173106]
- Foundation of State Key Laboratory of Coal Conversion [J14-15-913-1]
Three new zinc porphyrin dyes attached to ethynyl benzoic acid as an electron transmission and anchoring group have been designed, synthesized, and well-characterized. The performances of their sensitized solar cells have been investigated by optical, photovoltaic, and electrochemical methods. The photoelectric conversion efficiency of the solar cells sensitized by the dye with salicylic acid as an anchoring group demonstrated obvious enhancement when compared with that sensitized by the dye with carboxylic acid as an anchoring group. The density functional theory calculations and the electrochemical impedance spectroscopies revealed that tridentate binding modes could increase the efficiency of electron injection from dyes to the TiO2 nanoparticles by more electron pathways.
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