The output current of a PIN diode is proportional to the light incident . Whereas in APD due to internal multiplication (Avalanche multiplication) of primary photocurrent, higher gains are possible....
A diode that is sensitive to light. As light increases, the diode resistance drops. This can be used as a sensor in control circuitry that directs solar panels so they are always facing the sun. They...
Avalanche photodiodes (APDs) are photo detectors that can be regarded as the semiconductor analog to photomultiplier's. By applying a high reverse bias voltage (typically 100-200 V in silicon), APDs...