Improved performance of porphyrin-based dye sensitised solar cells by phosphinic acid surface treatment

Authors

K Sunahara
Alessandra Allegrucci
S Mori
Naomi A. Lewcenko
Leone Spiccia
Attila J. Mozer, University of WollongongFollow
Lynn DennanyFollow
Pawel W. Wagner, University of WollongongFollow
David L. Officer, University of WollongongFollow

RIS ID

30699

Publication Details

Allegrucci, A., Lewcenko, N. A., Mozer, A. J., Dennany, L., Wagner, P., Officer, D. L., Sunahara, K., Mori, S. & Spiccia, L. (2009). Improved performance of porphyrin-based dye sensitised solar cells by phosphinic acid surface treatment. Energy Environ. Sci., 2, 1069-1073.

Abstract

Chemical surface treatment of porphyrin-sensitised titania films using bis-(4-methoxyphenyl)phosphinic acid after dye adsorption, results in large improvements in DSSC efficiencies which originate primarily from higher short circuit currents. The result was attributed to a positive shift in the TiO2 quasi-Fermi level with simultaneous retardation of charge recombination. High device performances have been achieved even using simplified electrolyte matrices devoid of the common additives, LiI and t-butylpyridine.