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 ...

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 research team has built a Hall rectenna based on the type-II Weyl semimetal NbIrTe4 that, according to a study in Nature ...

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 ...

In October 2014, the Royal Swedish Academy of Sciences issued a statement in which it said, “Incandescent light bulbs … lit the 20th century; the 21st century will be lit by LED lamps.” The occasion ...

A model of a quantum thermal diode based on a qubit and qutrit. The asymmetric design allows this system to behave as a thermal diode when connected between two thermal baths. Credit: APL Quantum ...

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 ...

ProLite diode laser delivers 714 W of CW output. Newport's Spectra-Physics division says it has achieved 714 W of continuous wavelength operation using its ProLite diode laser. The result was achieved ...

An American physicist and two Japanese colleagues shared the Nobel Prize in physics on Tuesday for creating light-emitting diodes that shine in blue wavelengths — a crucial invention that filled out ...