Compound semiconductors

Which trio of researchers received the 2014 Nobel Prize in Physics for inventing the high-brightness blue LED?

  1. AIsamu Akasaki, Hiroshi Amano and Shuji Nakamura
  2. BWilliam Shockley, John Bardeen and Walter Brattain
  3. CLeo Esaki, Ivar Giaever and Brian Josephson
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Answer: A. Isamu Akasaki, Hiroshi Amano and Shuji Nakamura

Isamu Akasaki, Hiroshi Amano and Shuji Nakamura made high-brightness blue LEDs possible through achievements such as growing high-quality GaN crystals and realizing p-type GaN, and received the 2014 Nobel Prize in Physics. Blue LEDs enabled the spread of white LED lighting and full-color displays.

  • A. Correct. They received the 2014 prize for the blue LED.
  • B. Shockley and colleagues received the 1956 prize for inventing the transistor.
  • C. Leo Esaki and colleagues received the 1973 prize for work on tunneling.
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More Compound semiconductors questions

  1. Which elements make up gallium arsenide (GaAs)?
  2. Why is LED lighting more energy-efficient than incandescent bulbs?
  3. Which compound semiconductor, with very high electron mobility, is used in magnetic sensors (Hall elements) and the like?
  4. What is the gate structure of the MESFET, long used as a high-frequency GaAs transistor?
  5. Which material, named for its crystal structure, has attracted intense research as a high-efficiency solar cell material that can be made by low-temperature processes such as coating?