Friday, February 16, 2024

Shuji Nakamora and his (Juliano) Blue Gallium Nitride LED


Lots of great stuff in this video:  

-- They get the charge carrier thing right:  contrary to many presentations, holes don't really move in a semiconductor.  Electrons move to fill holes, making it appear that the holes are moving. 

-- Interesting that Nakamura was so willing to defy company orders for so long. 

-- The description of the discipline that powered his inventiveness is inspiring. 

-- The way he was treated (badly) in Florida because he lacked a PhD is sadly illuminating. 

-- The discussion of corporate infighting is interesting.  

We wrote about Nakamura before:  https://soldersmoke.blogspot.com/2021/02/shuji-nakamura-inventor-of-juliano-blue.html


1 comment:

  1. Derek Muller's Veritasium channel has done some excellent videos! The video's animated semiconductor band graphs are much easier to relate to than our old textbook versions.
    True: holes are not real physical particles, but they exhibit different properties from electrons that give us real problems, such as lower mobility. That can make p-type devices slower.
    Nakamura's efforts will likely pay off in areas other than optoelectronics. GaN's FET applications for example.

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