Photovoltaic characteristics of natural light harvesting dye sensitized solar cells
2018
Abstract In this work of research, anthocyanin as a natural dye obtained from raspberry fruits, was used and tested as a photon harvesting/electron donating dye in titanium dioxide nanoparticle-based DSSCs. A working photoelectrode made from TiO 2 nanoparticles with an average particle size (10–40 nm) that is coated on Florine doped tin-oxide substrate, was prepared via a simple and low cost hydrothermal method. A detailed structural and morphological analysis of the TiO 2 photoactive electrode was investigated by X-ray diffraction (XRD), diffuse reflectance spectrometer, transmission electron microscope (TEM) and scanning electron microscope (SEM). Complete photovoltaic characteristics including (current, voltage, outpower, and responsivity) of the natural anthocyanin based dye sensitized solar cell have been investigated under different illumination intensity ranging from 10 to 100 mW.cm − 2 . The cell responsivity and efficiency of the fabricated solar cell under different illumination intensity were found to be in the range ( R = 15.6–23.8 mA.W − 1 and η = 0.13–0.25) at AM = 1.5 conditions. This study is important for enhancing the future applications of the promising DSSC technology.
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