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Shuji Nakamura (中村 修二, Nakamura Shūji, born May 22, 1954) is a Japanese-American electronic engineer and inventor of the blue LED, a major breakthrough in lighting technology. [5] Nakamura specializes in the field of semiconductor technology, and he is a professor of materials science at the College of Engineering of the University of ...
- Light-emitting diode
In a light-emitting diode, the recombination of electrons...
- Light-emitting diode
In a light-emitting diode, the recombination of electrons and electron holes in a semiconductor produces light (be it infrared, visible or UV), a process called "electroluminescence". The wavelength of the light depends on the energy band gapof the semiconductors used.
7 paź 2014 · The 2014 Nobel Prize for physics has been awarded to a trio of scientists in Japan and the US for the invention of blue light emitting diodes (LEDs). Professors Isamu Akasaki, Hiroshi Amano and...
9 paź 2014 · The invention of bright blue LEDs brought entirely new industries into existence. Now, blue, red and green LEDs could be combined to make white—or any other color—light.
17 lis 2014 · This News & Views explains how the blue GaN LED was invented and its important role in modern society. The first red LED was created in the 1950s and by the 1960s the pursuit of shorter...
In September 2003, a new type of blue LED was demonstrated by Cree. This produced a commercially packaged white light giving 65 lm/W at 20 mA, becoming the brightest white LED commercially available at the time, and more than four times as efficient as standard incandescents.
1 mar 2018 · This paper summarizes the historical developments associated with the invention of high-brightness blue LEDs, reviews their current performance, and discusses potential future directions for solid-state lighting. First, we review early breakthroughs that led to high-quality GaN and p-type GaN.
