817627-99-9Relevant academic research and scientific papers
Tetrachelate porphyrin chromophores for metal oxide semiconductor sensitization: Effect of the spacer length and anchoring group position
Rochford, Jonathan,Chu, Dorothy,Hagfeldt, Anders,Galoppini, Elena
, p. 4655 - 4665 (2007)
Four Zn(II)-tetra(carboxyphenyl)porphyrins in solution and bound to metal oxide (TiO2, ZnO, and ZrO2) nanoparticle films were studied to determine the effect of the spacer length and anchoring group position (para or meta) on their b
Three horizontal anchor porphyrins for dye-sensitized solar cells: An optical, electrochemical and photovoltaic investigation
Wu, Yu,Liu, Jia-Cheng,Guo, Wen-Bo,Li, Ren-Zhi,Jin, Neng-Zhi
, p. 155 - 160 (2016/07/06)
Porphyrins are promising DSSC sensitizers focused on novel anchoring. Herein, three horizontal anchor zinc porphyrins have been designed, synthesized, and well-characterized. Their optical, photovoltaic, theory calculation and electrochemical performances
A novel self-assembly with horizontal anchor porphyrin for supramolecular solar cells
Wu, Yu,Zhang, Jun-Xiang,Feng, Xiao-Xia,Liu, Jia-Cheng,Li, Ren-Zhi,Jin, Neng-Zhi
, p. 60773 - 60779 (2016/07/11)
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.
Light-induced electron transfer over distances of 5, 10, and 15 A within water-filled yoctowells
Bhosale, Sheshanath V.,Hackbarth, Steffen,Langford, Steven J.,Bhosale, Sidhanath V.
, p. 176 - 182 (2012/04/04)
A small series of variable-depth yoctowell cavities with functional walls on aminated silica particles and gold electrodes has been established. The dimensions of the gaps formed were 2.2 nm in diameter with varying functional depths of 5, 10, and 15 A, depending on the length of bolaphiles applied and the position of the positive rim; these gaps were prepared through a Michael addition of the incorporated ene-amide groups. Using this construct and electrostatic interactions between the positive rim and anionic quinones as a means of immobilization, a porphyrin-quinone dyad system has been prepared. The distance between the donor and acceptor was changed systematically in aqueous solution, whilst maintaining a similar environment in each case. Upon photoexcitation of the porphyrin, efficient electron transfer occurs between the porphyrin and quinone units in a distance-dependent manner on the nanosecond timescale.
