White Light Emitting Diodes (LEDs) are semiconductor devices that emit white light when an electrical current passes through them. They are designed to provide illumination by combining different ...

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 ...

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.

Now, we’ve also added blue light-emitting devices – smartphones, television screens, tablets – which have been linked to sleep problems. But outdoor light may matter for our health ...

Figure 1: Optical microphotograph of the Au/polymer admixture/Au LEC (surface cell configuration) during operation at 4-V bias. The formation of a p–i–n light-emitting junction was proposed ...

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 ...

Mike Lee receives funding from the Australian Research Council and the Hermon Slade Foundation Welcome to our ‘Light and health’ series, where we look at how light affects our physical and ...

Schools, parks and sports centres in Bologna were closed on Friday as a precaution after a week of heavy rain Saturday's Serie A game between Bologna and AC Milan was postponed because of heavy ...

Quantum dot light‐emitting diodes (QDLEDs) offer a range of advantages ... Two types of QDLEDs exist: direct current (DC) driven and alternating current (AC) driven. The DC is a simple driving mode ...

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 ...

Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China Department of Applied Chemistry, Hefei Science Center ...