Primena azo boja u izradi fotonaponskih sistema

Dye sensitized solar cells (DSSC) have drawn a great attention in recent years as economically affordable and ecological photovoltaic systems, which are used for conversion of incident light to electric current. In this paper, the possibility of use of selected pyridone azo dye as sensitizer, as well as the efficiency of such photovoltaic system, was investigated. As a sensitizer, 3-cyano-1-ethylhydroxy-6-hydroxy-5-(4-carboxyphenylazo)-4-methyl-2-pyridone, azo dye based on pyridone moiety, has been used. Possibility of adhesion of mentioned pyridone azo dye on layer of titanium-dioxide as semiconductor was examined. Initial concentration as well as pH values of dye solution were varied. Thickness of semiconductive oxide was varied as well with the aim of optimizing the photoanode of photovoltaic system. Properties of such photovoltaic system were determined by amperage/voltage ratio, whereby the reference cell used as the solar cell without a sensitizer applied to the semiconductor oxide.