RSC Advances p. 60773 - 60779 (2016)
Update date:2022-09-26
Topics:
Wu, Yu
Zhang, Jun-Xiang
Feng, Xiao-Xia
Liu, Jia-Cheng
Li, Ren-Zhi
Jin, Neng-Zhi
In this work, employing the meta-mediated assembling strategy for organizing different metal ions (M, M = Zn2+, Cd2+ and Co2+) horizontal anchor porphyrins (MPA) and two antennas molecules (Lx, x = 1, 2) on the nanostructured TiO2 electrode surfaces have been prepared, resulting in a ZnPA+Lx assembled approach. Further, the assemblies were absorbed on the semiconducting TiO2 electrode surfaces by the carboxylic groups of horizontal anchor porphyrin, and their photovoltaic performances in solar cells were performed under an irradiance of 100 mW cm-2 AM 1.5G solar simulator. The photoelectric conversion efficiency of the solar cells sensitized by the dyes with triphenylamine group antenna molecule (L2) were obviously enhancement when compared to that sensitized by the dye with dimethylamino group antenna molecule (L1). The results were also verified by the transient photovoltage decay, theory calculations and optical performance. In addition, the assembled modes of the assemblies immobilized on TiO2 electrode surfaces were also verified by transmission electron microscopy.
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