Effect of concentration and pH of Tropaeolum Majus L. dye from the Junin Region in a Gratzel Cell

Vilca Quico D.; Escobar Velazco G.; Claros Castellares J.; Quintana Caceda M. · Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology (2025) · DOI: 10.18687/laccei2025.1.1.1740

Resumen

The present work was based on the determination of the amount of electrical energy from the concentration of anthocyanin and the pH of the solution of the natural dye of the species Tropaeolum majus L. in a Gratzel solar cell, which consisted of a photoelectrode synthesized with FTO-SnO2, sensitized with said dye, which is based on anthocyanin, a nanostructured metal oxide semiconductor TiO2, and a counter electrode in contact with the redox pair. I-/I3-, which through an electrochemical principle it was determined that the pH with a range of 4.5 to 5.5 and the anthocyanin concentration with a range of 185 mg pgd-3-glu to 190 mg pgd-3-glucoside, influence the generation of energy obtaining Voc (0.49V), Jsc (0.103 mA/cm2) and Pmax (29.31 nW/cm2) in the Gratzel solar cell of 1 cm2 area.

Instituciones: Universidad Nacional de Ingeniería; Universidad Nacional del Centro del Perú