NATURAL DYE SENSITIZED SOLAR CELLS USING HENNA LEAVES WITH ZnO NANOPARTICLE AT VARIOUS pH VALUES

Abstract

In this research, ZnO nanoparticles were synthesized at different pH values (3, 6 and 9) by using solvothermal method. To our knowledge, dye sensitized solar cells were fabricated using natural dyes extracted from henna (Lawsonia Inermis) based on ZnO nanoparticle as photoanode at various pH values. Synthesized ZnO samples were characterized using XRay Diffraction (XRD), Field Emission Scanning Electron Microscope (FESEM) with Energy Dispersive X-ray Spectroscopy (EDX), UV-Visible Spectroscopy and Fourier Transmission Infra-Red Spectroscopy (FTIR) and absorbance and transmittance properties of the prepared samples were investigated. The ZnO at pH 9 was obtained highest efficiency extracted from henna (Lawsonia Inermis) of 0.39% better than the other solar cells of pH variations.