You will learn about semiconductor light-emitting diodes (LEDs) and lasers, and the important rules for their analysis, planning, design, and implementation. You will also apply your knowledge through ...

The Omnilux system (Alderm, NA, LLC, Irvine, CA) uses a panel of 2000 focused diodes in interchangeable heads to deliver 408 nm blue or 633 nm red light. These two can be used alone or in sequence.

The diode is in reverse bias, and no current is flowing through it. An AC voltage applied to C1 will appear at the anode, but will not appear at the cathode and the output via C2. The switch ...

Light emitting diodes (LEDs) are PN junction devices that give off light radiation through electroluminescence when forward biased. They are used as various indicators in aviation, automotive and ...

An acronym for “Quantum Dot Light Emitting Diode,” a QLED TV combines traditional LED backlighting with a layer of quantum dots. (We have a full explainer that answers the "what is QLED ...

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 ...

The fact that diodes emit light under certain conditions has been known for over 100 years; the first light-emitting diode was discovered at Marconi Labs in 1907 in a cat’s whisker detector ...

It supports 120-volt and 240-volt AC charging, high- and low-voltage solar charging, car charging, and combination charging through AC and solar ports at the same time. Charging times vary ...

The comments by Pei and Heeger on our paper published in Nature Materials 1 call for a clarification of the mechanism of the operation of light-emitting electrochemical cells (LEECs). The simplest ...

For QLEDs, advancements are directed towards increasing the efficiency of quantum dot light emission and integrating this technology into a broader range of applications. The ongoing innovation in ...

Blue Light Emitting Diodes (LEDs) are semiconductor devices that emit blue light when activated. They are part of the visible LED spectrum and are used to produce blue light by utilizing specific ...