This illustration demonstrates how bright blue LED light, shone through its complementary yellow phosphor, yields white light. Credit: UCSB
The researchers behind the breakthrough, from left to right are: Steve DenBaars, Jakoah Brgoch and Ram Seshadri. Credit: UCSB
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All of the recent advances in solid-state lighting have come from devices based on gallium nitride LEDs, a technology that is largely credited to UCSB materials professor Shuji Nakamura, who invented the first high-brightness blue LED. In solid-state white lighting technology, phosphors are applied to the LED chip in such a way that...