Jump to main content
Jump to site search

Issue 14, 2008
Previous Article Next Article

The role of para-alkyl substituents on meso-phenyl porphyrin sensitised TiO2 solar cells: control of the eTiO2/electrolyte+ recombination reaction

Author affiliations

Abstract

We aim to investigate the effect of adding hydrophobic alkyl chains substituents to unsymmetrical free base tetra-phenyl porphyrins used for the preparation of dye sensitised solar cells (DSSC). We have used two different unsymmetrical meso-tetraphenyl substituted free base porphyrins attending to two objectives: (1) to observe how the substitution of three para positions of the meso-phenyl groups with hydrophobic alkyl chains influences the formation of molecular aggregates onto the semiconductor nanoparticles and (b) to deduce the influence that the substitution exerts over the eTiO2/electrolyte+ recombination reaction in operating devices. To achieve these goals we have focussed on the study of the electron transfer processes that take place at the different interfaces of the photovoltaic device using electrochemistry, steady-state and time resolved spectroscopic techniques.

Graphical abstract: The role of para-alkyl substituents on meso-phenyl porphyrin sensitised TiO2 solar cells: control of the eTiO2/electrolyte+ recombination reaction

Back to tab navigation

Publication details

The article was received on 05 Nov 2007, accepted on 29 Jan 2008 and first published on 19 Feb 2008


Article type: Paper
DOI: 10.1039/B717081E
Citation: J. Mater. Chem., 2008,18, 1652-1658
  •   Request permissions

    The role of para-alkyl substituents on meso-phenyl porphyrin sensitised TiO2 solar cells: control of the eTiO2/electrolyte+ recombination reaction

    A. Forneli, M. Planells, M. A. Sarmentero, E. Martinez-Ferrero, B. C. O'Regan, P. Ballester and E. Palomares, J. Mater. Chem., 2008, 18, 1652
    DOI: 10.1039/B717081E

Search articles by author

Spotlight

Advertisements