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.

[Fjord Carver] brings together an RGB LED and CdS Photoresistor to make a color sensor. Those Cadmium Sulfide lights sensors usually have a very wide swing of resistance when exposed to varying ...

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.

They also tested different types of buffer layers in the proposed cell configuration, in an effort to find non-toxic alternatives to cadmium sulfide (CdS). For the buffer layers, they considered ...

Semiconductor nanoparticles typically consist of a crystalline core made from a semiconductor material, such as cadmium selenide (CdSe), cadmium sulfide (CdS), or indium phosphide (InP). The core is ...