INVESTIGADORES
CABRERIZO Franco Martin
artículos
Título:
Phycocyanin as Potential Natural Dye for its Use in Photovoltaic Cells
Autor/es:
PAULA ENCISO; FRANCO M. CABRERIZO; JORGE S. GANCHEFF; PABLO A. DENIS; MARÍA FERNANDA CERDÁ
Revista:
Journal of Applied Solution Chemistry and Modeling
Editorial:
Lifescience Global
Referencias:
Año: 2013 vol. 2 p. 225 - 233
ISSN:
1929-5030
Resumen:
Phycocyanin,
a blue protein extracted from Spirulina spp, shows promising characteristics
that made it suitable for its use as natural dye in photovoltaic devices as the
dye sensitized solar cells. In this work, a study of the aqueous solution-phase
photochemistry, photophysics, spectroscopy, voltammetry and thermal stability
of phycocyanin is presented. Suitable redox potentials (Eox = 1.2 V vs. Ag/AgCl)
and a value of 1.96 V for E0,0 (i.e., the energy difference between the vibrationally relaxed
levels of the first electronic excited state, S1, and the ground
state, S0 of phycocyanin), allows the calculation of energetic
profiles that in comparison with the conduction band of the anatase-TiO2
and I-/I3- electrolyte, could predict electron
transfer with these components of the cell.
The data reported herein should not only help to
evaluate the potential use of phycocyanin as sensitizer for solar cells, but
should also help in the development of novel solar cells where the photoinduced
behavior of this protein can be controlled.