A convergence of shifting global trends toward sustainability and digital industries and, more critically, a fundamental ...
A man in South Carolina has been arrested after officials said he stole a Spartanburg County deputy’s patrol vehicle and led ...
It’s hard to believe that the first blue LED didn’t arrive until 1993. They look simple, but looks are deceiving (Fig. 1). 1. Image showing a blue InGaN-based LED with gold wire contacts (0.4 × 0.4 mm ...
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What It Really Took to Make the First Blue LED
Making a blue LED was once thought impossible. Unlike red or green, producing blue light required a semiconductor with a much larger energy band gap. For decades, the right material didn’t exist—or at ...
Researchers report an in-situ passivation strategy for pure-blue perovskite light-emitting diodes (PeLEDs), promising for next-generation displays, fabricated by vacuum thermal evaporation.
Not to sound like a TV commercial or anything, but … how often have you had to throw out white shirts because of unsightly yellow underarm stains? Well, those stains may not be a problem any longer, ...
We developed a hybrid copper–iodide compound called CuI(Hda). It emits deep-blue light at about 449 nanometres and has an almost-perfect photoluminescence quantum yield — a measure of emission ...
TORONTO--(BUSINESS WIRE)--Blue J, a leading GenAI tax research platform, today announced it has raised $122 million in U.S. dollars in a Series D funding round led by Oak HC/FT and Sapphire Ventures, ...
A Rutgers-led team of scientists has developed an eco-friendly, very stable, ultra-bright material and used it to generate deep-blue light (emission at ~450 nm) in a light-emitting diode (LED), an ...
I'm curious about the blue streetlights on 23 near Lazelle Road. Are they a blue hue to keep people awake? To conserve energy? To hurt drivers' eyes? Total mystery to me. I have to admit, this week's ...
Light-emitting diodes (LEDs) are so ubiquitous that it's easy to forget just how much society relies on these underappreciated technological wonders. Yet, the history of the LED goes back further than ...
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