<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>A novel zinc porphyrin (5,10,15-tri-dodecoxyphenyl-20-(4-hydroxyphenyl-azo-benzenyl)-porphyrinatozinc (tdhab-ZnP)) with benzenyl-azo-phenolic group, able to adsorb on the nanocrystalline-TiO2 film, has been synthesized. We constructed a dye-sensitized solar cell based on the nanocrystalline-TiO2 hierarchical structure film, with a power conversion efficiency of 4.15 % and a high current density of 14 mA/cm2 under AM 1.5 irradiation. UV-Vis absorption spectra measurements indicated that the tdhab-ZnP molecules formed a charge transfer complex with TiO2 nanoparticles (NPs) through the phenolic group. Cyclic voltammetry measurement showed that the charge separation resulting from the tdhab-ZnP excited singlet state to the conduction band (CB) of TiO2 and charge shifting from the I−/I3− couple to the porphyrin radical cation were thermodynamically feasible.</p></abstract>

A novel zinc porphyrin (5,10,15-tri-dodecoxyphenyl-20-(4-hydroxyphenyl-azo-benzenyl)-porphyrinatozinc (tdhab-ZnP)) with benzenyl-azo-phenolic group, able to adsorb on the nanocrystalline-TiO2 film, has been synthesized. We constructed a dye-sensitized solar cell based on the nanocrystalline-TiO2 hierarchical structure film, with a power conversion efficiency of 4.15 % and a high current density of 14 mA/cm2 under AM 1.5 irradiation. UV-Vis absorption spectra measurements indicated that the tdhab-ZnP molecules formed a charge transfer complex with TiO2 nanoparticles (NPs) through the phenolic group. Cyclic voltammetry measurement showed that the charge separation resulting from the tdhab-ZnP excited singlet state to the conduction band (CB) of TiO2 and charge shifting from the I−/I3− couple to the porphyrin radical cation were thermodynamically feasible.

A new porphyrin sensitizer with phenolic binding group for high efficiency dye-sensitized solar cells

The School of Material Science & Engineering, Harbin University of Science and Technology, Harbin, 150040, P. R. China

Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry and Environment, Beihang University, Beijing, 100191, P. R. China

Institute for Chemical Physics, Beijing Institute of Technology, Beijing, 100081, P. R. China

Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

A novel zinc porphyrin (5,10,15-tri-dodecoxyphenyl-20-(4-hydroxyphenyl-azo-benzenyl)-porphyrinatozinc (tdhab-ZnP)) with benzenyl-azo-phenolic group, able to...

A new porphyrin sensitizer with phenolic binding group for high efficiency dye-sensitized solar cells

Pubblicato online: 19 dic 2014

Pagine: 610 - 616

DOI: https://doi.org/10.2478/s13536-014-0230-0

Parole chiave
dye-sensitized solar cell, porphyrin, nanocrystalline-TiO2

© 2014 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

A new porphyrin sensitizer with phenolic binding group for high efficiency dye-sensitized solar cells

Pubblicato online: 19 dic 2014

Pagine: 610 - 616

DOI: https://doi.org/10.2478/s13536-014-0230-0

Parole chiavedye-sensitized solar cell, porphyrin, nanocrystalline-TiO2

© 2014 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Parole chiave
dye-sensitized solar cell, porphyrin, nanocrystalline-TiO2