The four-layer diode was the key to William Shockley's plan to revolutionize AT&T's phone system. It was a great device in theory, but not in practice -- at least not at the time when Shockley wanted ...

Photonic Products is now supplying Sanyo's latest range of high-power blue-violet lasers. The range includes three new 405-nm laser diodes, which offer 20 mW, 45 mW or 85 mW optical output power.

Superconductors are the key to lossless current flow. However, the realization of superconducting diodes has only recently become an important topic of fundamental research. An international research ...

Control of recombination features in the layers of the semiconductor element is considered to be one of the most effective methods of increasing performance and many other characteristics of power ...

A team of physicists at MIPT has offered a new design of a spin diode, placing the device between two kinds of antiferromagnetic materials. By adjusting the orientation of their antiferromagnetic axes ...

PROVIDENCE, R.I. [Brown University] — Superconductors — materials that conduct electricity with zero loss of energy — have been well-understood since the development of what’s called the BCS theory in ...

Australian semiconductor developer BluGlass has successfully demonstrated working tunnel junction laser diodes in a world-first proof-of-concept using its proprietary remote plasma chemical vapour ...

(Nanowerk News) One speaks of a superconducting diode effect when a material behaves like a superconductor in one direction of current flow and like a resistor in the other. In contrast to a ...

Determine the value of anode current in the figure above when the device is on. VBR(F) = 10 V. Assume the forward voltage drop is 0.9 V. The voltage at the node, Va, is 0.9. The voltage across Rs is: ...

A new ultra-stretchy OLED brings glowing, wearable displays and real-time health sensors one step closer to reality.

A special type of diode made from a crystalline material whose layers are just three atoms thick has been successfully realized for the first time. The superior properties of such ultra-thin crystals ...