In the first part of our study, we used a photoelectrochemical cell composed of a single cell setup using a screen-printed electrode with a graphite working electrode (WE), platinum counter electrode (CE), and silver coated with a silver chloride reference electrode (RE). To study the photoelectrochemical properties of 2N6S we performed cyclic voltammetry (CV) in dark and under UV irradiation using a LED with λex=340 nm (Figure ). We observed that only under irradiation, a positive peak with a maximum at +0.5V and a negative peak at -0.5V were formed. In addition, between -1 and -0.5V the photocurrent became less negative. As none of these peaks appeared in the dark measurements, or in measurements of pure electrolyte (Figure ), it implies that these peaks are due to the formation of the ionic forms: RO -and H + . Since H + can only accept electrons, we ascribed it to the new peak at -0.5V. To pinpoint In the next step, we followed photocurrent generation of 2N6S with CA under applying -1V, -0.5V, and +0.5V on the WE (the marked areas in the CV presented in Figure ). Under a negative -1V on the WE with dark/light irradiation intervals (Figure ), we can clearly observe a light response of the measured current, exhibiting a decrease in cathodic current upon light irradiation with a measured absolute photocurrent density of 0.97 ± 0.22 µA/cm 2 . While turning off the light, the current density has returned to its initial value (prior to irradiation).