What It Really Took to Make the First Blue LED
MSNVeritasium
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 least, no one knew how to grow it properly. It took years of failed experiments, breakthroughs in crystal growth techniques, and sheer ...
3 months ago
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The🕵️‍♂️🕵️‍♀️ invention of the blue LED, a pivotal development in lighting technology, is credited to a team of Japanese scientists: Isamu Akasaki, Hiroshi Amano, and Shuji Nakamura. Their work, primarily in the early 1990s, involved creating efficient blue LEDs using gallium nitride (GaN) and indium gallium nitride (InGaN). This breakthrough enabled the creation of white LEDs by combining blue LEDs with a phosphor material, and it also paved the way for full-color LED displays. #science #educ
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