Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
PERFORMANCE OF DYE-SENSITIZED SOLAR CELLS USING LEUCANTHEMUM VULGARE FLOWERS AS NATURAL SENSITIZERS
Submission Author:
Daniel Sampaio , RJ
Co-Authors:
Francisco Ferreira, Daniel Sampaio, SURESH BABU RAJENDRAN, Breno Ferreira, Ana Barros
Presenter: Daniel Sampaio
doi://10.26678/ABCM.COBEM2019.COB2019-0916
Abstract
The growing demand for renewable energy, especially the solar energy, has been seeking new ways to enhance a new generation of solar cells, as the Dye-sensitized solar cells (DSSC´s). This technology is based on a nanostructured semiconductor anode, an electrolyte and a photoelectrochemical cathode. DSSC’s are considered attractive devices because they combine organic and inorganic materials, and are mechanically resistant. In this work, TiO2 (Titanium Dioxide) was used for the cell anode, and for the cathode, platinum. Moreover, natural dyes containing anthocyanins were prepared using the petals of daisy flowers (Leucanthemum vulgare). The photovoltaic performance was carried out to understand the effect of the different photo-anodes and the interaction with the dye molecules on the overall cell’s efficiency. DSSC’s sensitized with daisy flowers dye showed open-circuit voltage (Voc) of 520mV and efficiency of 0.87%. These results show that the DSSC’s, using daisy flowers extracts as photosensitizers, are suitable for the fabrication of natural dye-based DSSC’s.
Keywords
renewable energy, DSSC´s, anthocyanin
