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 ...
Glass microspheres help perovskite quantum dots resist blue-light degradation, heat, and moisture in patterned micro-LED color-conversion pixels.
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