Solar Cell Modification for Large Area Motion Detection: Proof of Concept

For a long time researchers try to develop tools or systems that could help in detecting the motion of the moving body and tracking it. It had a big importance in many fields such as sport performance, medical, virtual reality and many more fields. This paper proves that a solar cell can be modified to function as a Position Sensitive Detector (PSD), which could be used as the detector in a motion detection system. We modeled and simulated one dimensionally modified solar cell by TCAD simulation tools to calculate the detected photocurrent as a function of the position of an incident laser beam sourced by the moving object. The position detection error of the modified solar cell simulation is less than ± 1%. This shows the possibility of converting a solar cell to a PSD.