The basics of bipolar devices are covered, including basic semiconductor physics, [1] the concepts of electron and hole flow in semiconductors, the differences between drift and diffusion flow, ...

This file type includes high-resolution graphics and schematics when applicable. When devices are being designed to operate at low voltage, it’s often necessary to take into account the voltage drop ...

A physicist has made the best ever p-n junction diode from a carbon nanotube. The current-voltage characteristics of the device exhibit an "ideality factor" of one, which is the maximum possible value ...

A superconducting strip allows more superconducting current to flow in one direction than in the other—achieving a stronger diode effect than previous devices. The new superconducting diode design ...

A global discovery born from the analysis of defective products: Tunneling effect, artificial superlattices, and Management ...

The invention of blue light-emitting diodes has been awarded the 2014 Nobel Prize in physics. Blue LEDs, when combined with red and green diodes, produce an energy-efficient and environmentally ...

An antiferromagnet with a zigzag magnetic structure exhibits a diode effect that has potential applications in spintronics. One-way traffic. A diode effect is observed in an antiferromagnet. The ...

Semiconductor diode lasers are everywhere. They created the light pulses that raced along the fibres between our server and yours – allowing you to read this article – and if you stop at the ...

A proof-of-principle experiment allows single photons to travel in only one direction through an optical fiber. One-way traffic. In this artist’s rendering, when light travels from left to right, it ...

This year's Nobel Prize in physics goes to researchers whose findings you probably rely on just about every day (or, if you're like me, just about every minute). The blue light-emitting diodes they ...