Abstract
The present study involves fabrication and photovoltaic characterization including impedance properties of dye-sensitized solar cells based on natural dye from beetroot. The electrode of the cell was prepared with commercial Fluorine-doped Tin Oxide glass with 100 μm layer of nanostructured TiO2 whereas, the counter electrode consisted of platinum-coated glass. Fresh juice was extracted from beetroot to use as dye. The dye exhibited high absorption in visible range. Photovoltaic measurements of the solar cell gave a short circuit current density (Jsc) of 130 μA/cm2 and an open-circuit voltage (VOC) of 0.38 V under AM 1.5 illumination intensity. The VOC and Jsc showed linear behavior at higher values of illumination intensities. The conductance-voltage, the capacitance-voltage and the series resistance voltage characteristics of the dye solar cell was measured at frequency range from 5 kHz to 5 MHz to study performance of the dye-sensitized solar cells with natural dyes.
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•Fresh juice was extracted from beetroot to use as dye in Solar Cell. The dye exhibited high absorption in visible range.•Electrode of the cell was prepared with commercial Fluorine-doped Tin Oxide glass with 100 μm layers of nanostructured TiO2 whereas, the counter electrode consisted of platinum coated glass.•Photovoltaic measurements of the solar cell gave a short circuit current density (Jsc) of 130 μA/cm2 and an open circuit voltage (Voc) of 0.38 V under AM 1.5 illumination intensity.•Impedence spectroscopic studies of beetroot dye solar cell were carried out from 5 kHz to 5 MHz.