Blueberries as a Source of Energy: Physical Chemistry Characterization of Their Anthocyanins as Dye-Sensitized Solar Cells’ Sensitizers

This work aimed to show the possibility of applying anthocyanins extracted from blueberries following a straightforward path as potential impregnation dyes in dye-sensitized solar cells (DSSCs), particularly presence co-adsorbents, such silver nanoparticles, an alternative order profit large amounts discarded fruits. Following simple procedure, (mainly delphinidin-3-glucoside) were obtained (Southern Highbush type). Complete characterization was carried out prove utility delphinidin-3-glucoside sensitizer DSSCs. The analyzed anthocyanin is suitable for sensitizing because its high molar absorptivity values within visible region light spectra, adsorption ability FTO/TiO2 electrode (FTO, fluorine-doped tin oxide) confirmed by Fourier transform infrared (FTIR) well thermogravimetry coupled differential scanning calorimetry (TG-DSC), oxidation value near 1 V, and adequate thermal stabilities. Moreover, cell’s conversion efficiency improved reaching 0.24% (nearly 25% increase). sum all these characteristics points application DSSCs, offering technological use with interest countries where agricultural production offers abundant origin extraction.