The innovation is a method of generating current from a flower extract for a dye sensitized solar cell. It involves using ethanol and petroleum ether for solvent extraction, adsorbing the isolated pigments onto a titanium (TiO2) layer deposited on a photoelectrode, assembling the DSSC with an anode, counter anode and electrolyte, illuminating the DSSC with radiation and measuring the resulting current output. Based on lab tests, the open circuit voltage of the DSSCs was measured as 390 mV and the short circuit current of the DSSCs was measured as 4.56 mA/cm2. The maximum power output of the DSSCs was 848 mW/cm2.
The advantage of this innovation is that it avoids impurities including non-polar pigment and other derivatives by using the methanol-petroleum ether solvent separation system. There were also no problems with degradation and denaturation over time, up to a maximum of 2 months. Finally, the invention is suitable, but not restricted to, for use in fabrication of DSSC.