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Isamu Akasaki

Isamu Akasaki
赤﨑 勇
Isamu Akasaki
Born(1929-01-30)January 30, 1929
Chiran, Kawanabe District, Kagoshima Prefecture, Empire of Japan (Now Japan)
DiedApril 1, 2021(2021-04-01) (aged 92)
Nagoya, Aichi Prefecture, Japan
NationalityJapanese
Alma materKyoto University
Nagoya University
SpouseRyoko Akasaki
AwardsAsahi Prize (2001)
Takeda Award (2002)
Kyoto Prize (2009)
IEEE Edison Medal (2011)
Nobel Prize in Physics (2014)
Charles Stark Draper Prize (2015)
Scientific career
FieldsPhysics, Engineering
InstitutionsMeijo University
Nagoya University

Isamu Akasaki (赤﨑 勇, Akasaki Isamu, January 30, 1929 – April 1, 2021) was a Japanese engineer and physicist, specializing in the field of semiconductor technology and Nobel Prize laureate, best known for inventing the bright gallium nitride (GaN) p-n junction blue LED in 1989 and subsequently the high-brightness GaN blue LED as well.[1][2][3][4][5]

For this and other achievements, Akasaki was awarded the Kyoto Prize in Advanced Technology in 2009,[6] and the IEEE Edison Medal in 2011.[7] He was also awarded the 2014 Nobel prize in Physics, together with Hiroshi Amano and Shuji Nakamura,[8] "for the invention of efficient blue light-emitting diodes, which has enabled bright and energy-saving white light sources". In 2021, Akasaki, along with Shuji Nakamura, Nick Holonyak, M. George Craford and Russell D. Dupuis were awarded the Queen Elizabeth Prize for Engineering "for the creation and development of LED lighting, which forms the basis of all solid state lighting technology".[9]

  1. ^ Isamu Akasaki; Hiroshi Amano (2006). "Breakthroughs in Improving Crystal Quality of GaN and Invention of the p–n Junction Blue-Light-Emitting Diode". Japanese Journal of Applied Physics. 45 (12): 9001–9010. Bibcode:2006JaJAP..45.9001A. doi:10.1143/JJAP.45.9001. S2CID 7702696. Archived from the original on July 22, 2012. Retrieved November 10, 2015.
  2. ^ "Japanese Journal of Applied Physics". jsap.jp. Archived from the original on April 18, 2012. Retrieved November 10, 2015.
  3. ^ Amano, Hiroshi; Kito, Masahiro; Hiramatsu, Kazumasa; Akasaki, Isamu (December 20, 1989). "P-Type Conduction in Mg-Doped GaN Treated with Low-Energy Electron Beam Irradiation (LEEBI)". Japanese Journal of Applied Physics. 28 (Part 2, No. 12). Japan Society of Applied Physics: L2112–L2114. Bibcode:1989JaJAP..28L2112A. doi:10.1143/jjap.28.l2112. ISSN 0021-4922.
  4. ^ Isamu Akasaki; Hiroshi Amano; Masahiro Kito; Kazumasa Hiramatsu (1991). "Photoluminescence of Mg-doped p-type GaN and electroluminescence of GaN p-n junction LED". Journal of Luminescence. 48–49. Elsevier BV: 666–670. Bibcode:1991JLum...48..666A. doi:10.1016/0022-2313(91)90215-h. ISSN 0022-2313.
  5. ^ Isamu Akasaki, Hiroshi Amano, Kenji Itoh, Norikatsu Koide and Katsuhide Manabe: "GaN-based UV/blue light emitting devices", Inst. Phys. Conf. Ser. No.129, pp. 851-856, 1992
  6. ^ "Kyoto Prize: Isamu Akasaki". Inamori-f.or.jp. Inamori Foundation. Archived from the original on March 4, 2016. Retrieved November 10, 2015.
  7. ^ "IEEE Jack S. Kilby Signal Processing Medal Recipients" (PDF). IEEE. Retrieved April 15, 2012.
  8. ^ "The 2014 Nobel Prize in Physics - Press Release". Nobelprize.org. Nobel Media AB 2014. Retrieved October 7, 2014.
  9. ^ "LED Lighting". Queen Elizabeth Prize for Engineering.

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