The photosensor is a simple cadmium sulfide cell, which measures the intensity of light bouncing back from an object as an Arduino drives the LED through all possible colors with PWM signals.

adding that it should be used in CdSeTe devices by incorporating a cadmium sulfide (CdS) thin layer in the front junction region while avoiding the formation of a detrimental interface.

The electron transport layer (ETL) was made with zinc oxide and cadmium sulfide (ZnO/CdS) and the hole transport layer (HTL) with the PEDOT polymer and copper iodide (CuI). Gold contacts with a ...