"Preparation and characterization of dye-sensitized solar cells using chlorophyll and anthocyanins as photosensitizers."

Abstract

 Pigment solar cells based on the chlorophyll pigment extracted from olive leaves and anthocyanin pigment extracted from red tea leaves (hibiscus) were prepared as photocatalysts for the titanium dioxide TiO2 layer deposited on the FTO chip as a first electrode (anode) and the antielectrode (cathode), an FTO chip on which graphene and electrolyte used between the two semi-solid electrodes are deposited 

 The crystal structure of titanium dioxide was determined using X-ray diffraction technology XRD, the results showed that the structure of titanium dioxide is of the anatase type, the titanium dioxide chip and the photo prepared dyes were described by studying the absorption spectra of each within the range (700-300) nm and the results showed that the spectra obtained matched the reference spectrometry 

 We studied the performance of electrically prepared pigment solar cells by determining the values of the filling factor and yield for each cell and the results showed that the value of the filling factor was 0.48 and the yield 0.0397% for the solar cell that adopted the chlorophyll pigment as a photocatalyst and the value of the filling factor 0.188 and the yield 0.00159% for the cell that adopted the anthocyanin pigment.