DSSC Heterojunction photoelectrode based ZnO-nanorod/TiO2; Dependency of photoelectrode morphology investigated by calculating I-V curves

The simple diode model equation can be used to derive solar cell parameters based on current density-voltage curve. This calculation has an objective study the working of ZnO nanorod/TiO2 as photoelectrode in dye-sensitized (DSC). As a function collect and transport electron inside cell, ZnO-Nr/TiO2 bilayer heterojunction works photoanode. equivalent circuit real is usually two by considering presence large recombination process (non-ideal diode). We simplified with only one resistor (Rsh) parallel series (Rs) related photovoltage occurs. loss due back reaction which appeared at interfacing area between photoanode/dye electrolyte corresponds resistance (Rp). An ideality factor (m) non-linear b-recombination occurred also derived using this model. comparison commonly photoanode (single type TiO2 mesoporous), multilayer nanorod/TiO2, planar ZnO/TiO2 observed order emphasize interface quality photonode such