Light-emitting diodes with an emission wavelength longer than 365 nm typically have GaN or InGaN quantum wells (QWs) in the active region, and those with shorter wavelengths in general have AlGaN QWs.

An illuminated battery light means there’s something wrong with the car’s charging system, which primarily consists of the battery and alternator, along with some associated components such as ...

Key Lab of Optic-Electronic and Communication, Jiangxi Sciences and Technology Normal University, Nanchang 330038, P. R. China ...

At-home light-emitting diode (LED) devices are effective for treating acne, according to a research letter published online March 5 in JAMA Dermatology. Sherry Ershadi and John S. Barbieri ...

Luckily on many cars changing an alternator ... current by diodes within. That direct current powers the electrical systems ...

The assembled PCBs snap into 3D printed enclosures with dividers to keep light from bleeding through from one legend to the other. The lenses are laser-cut translucent acrylic painted with ...

What Is A Light-Emitting Diode? A light-emitting diode (LED ... LEDs are widely used as indicator lights on a plethora of machines, ranging from sensors in generators to lights for vehicles ...

However, some magnetic materials have an optical diode effect -- an unconventional nonreciprocal absorption of light manifested by the material itself. This effect leads to a change in ...

The occasion was the awarding of the Nobel Prize for physics for that year, for an achievement that paved the way for light-emitting diodes (LEDs) to succeed the incandescent bulbs and fluorescent ...

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...