CORDELIA MOLLOY / SCIENCE PHOTO LIBRARY CORDELIA MOLLOY / SCIENCE PHOTO LIBRARY
Photodiode. A photodiode is a type of diode that allows electric current to flow if the light levels are high enough. A diode is an electronic component that acts as a one-way valve for the flow of electric current. Most are made from a combination of semiconductor materials that allow controlled flow of electricity. This photodiode is part of a prototype device for varying the position of solar panels to maximise exposure to incident sunlight over the course of the day.
Model release not required. Property release not required.