Why Blue LED Lights Were So Much More Difficult to Create Than Red or Green LEDs

Derek Muller of Veritasium explained why red and green LED lights were relatively simple to make, but blue LED still remained quite elusive. In fact, red and green were already being used for years before Japanese researcher Shuji Nakamura unlocked the key to the blue LED in the face of growing pressure from his employer.

The blue LED was supposed to be impossible—until a young engineer proposed a moonshot idea.

Blue LED
Lori Dorn
Lori Dorn

Lori is a Laughing Squid Contributing Editor based in New York City who has been writing blog posts for over a decade. She also enjoys making jewelry, playing guitar, taking photos and mixing craft cocktails.