This animation shows band populations as a function of temperature in a p-type extrinsic semiconductor. Note that the Fermi-energy actual shifts position in the band gap and is not accurately depicted here. The video...

Experiment with conductivity in metals, plastics and photoconductors. See why metals conduct and plastics don't, and why some materials conduct only when you shine a flashlight on them. This simulation of a Conductivity...

The interactive resource, presented by the University of Colorado, Boulder, presents a demonstration how a doped semiconductor to create a diode or transistor. Watch the electrons change position and energy. This...

All About Circuits is a website that “provides a series of online textbooks covering electricity and electronics.” Written by Tony R. Kuphaldt, the textbooks available here are wonderful resources for students, teachers,...

This lesson is adapted from PSU's GREATT lesson, "Solar Power: The History, Chemistry, and Application of Photovoltaics." In this lesson, students will investigate how to optimize the power output of a photovoltaic cell...