title: Design and fabrication of a series of metal-mediated assemblies with tetrapyridylporphyrins for supramolecular solar cells.
abstract: In this work, a metal-mediated assembling strategy has been used to organize a series of new assemblies based on tetrapyridylporphyrin () on nanostructured TiO2 electrode surfaces, wherein the metal ions (, = Zn(2+), Cd(2+), Hg(2+) and Mn(2+)) bridge the pyridyl units of and (E)-4-[(pyridin-4-ylmethylene)-amino]benzoic acid (), resulting in a assembled mode. The assembled structures were characterized by transmission electron microscopy (TEM), computational calculations, energy-dispersive X-ray spectroscopy (EDX), IR, UV-vis absorption and fluorescence spectra. The performances of the assembly-sensitized solar cells were also measured under an irradiance of 100 mW cm(-2) AM 1.5G sunlight. Photoelectrochemical results reveal a relatively large photocurrent of the device. Simultaneously, a large open-circuit photovoltage and a significantly improved conversion efficiency of the device are also observed. These findings may serve as another good testing ground for the fabrication of supramolecular solar cells in future.
authors.affiliation: Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China. jcliu8@nwnu.edu.cn.
authors.forename: Wen-Ting
authors.initials: WT
authors.lastname: Deng
authors.forename: Jia-Cheng
authors.initials: JC
authors.lastname: Liu
authors.forename: Jing
authors.initials: J
authors.lastname: Cao
authors.forename: Dong-Cheng
authors.initials: DC
authors.lastname: Hu
authors.forename: Ren-Zhi
authors.initials: RZ
authors.lastname: Li
authors.forename: Neng-Zhi
authors.initials: NZ
authors.lastname: Jin