ANALYSIS OF KINETIC PROCESS IN ORGANIC DYE SENSITIZED

J. NATERA, F. FUNGO, F. FABREGAT-SANTIAGO, J. BISQUERT, M. GRÄTZEL, TH. DITTRICH, L. OTERO

Posadas

Congreso; Segundo Congreso Nacional y Primer Congreso Iberoamericano del Hidrogeno y Fuentes Sustentables de Energía; 2007

Instituto de Energía y Desarrollo Sustentable. Comision Nacional de Energía Atómica

Dye-sensitized solar cells (DSSC) have attracted much attention in the research for an alternative and low cost energy source. Over 11 % efficiency has been reached with the use of organic dyes as light receptors. In this report we described the analysis of the kinetic process that govern the efficiency in dye sensitized solar cell. The studies involved photoelectrochemistry, surface laser flash photolysis, surphase photovoltage and electrochemical impedance spectroscopy. The last technique is used to derive the key circuit elements determining the photovoltaic performance of the complete solar cells. Based on this data, photocurrent voltage curves are calculated and compared with experimental results.