Isamu Akasaki (赤崎 勇, Akasaki Isamu, born January 30, 1929) is a Japanese scientist, specializin in the field o semiconductor technologie an Nobel Prize laureate, best kent for inventin the bricht gallium nitride (GaN) p-n junction blue LED in 1989 an subsequently the heich-brichtness GaN blue LED as well.[1][2][3][4][5]

Isamu Akasaki
Isamu Akasaki 201111.jpg
Native name赤崎 勇
Born (1929-01-30) 30 Januar 1929 (age 91)
Chiran, Kawanabe Destrict, Kagoshima Prefectur
Alma materKyoto Varsity
Nagoya Varsity
AwairdsAsahi Prize (2001)
Takeda Award (2002)
IEEE Edison Medal (2011)
Nobel Prize in Pheesics (2014)
Charles Stark Draper Prize (2015)
Scientific career
InstitutionsMeijo Varsity
Nagoya Varsity

For this an ither achievements Isamu Akasaki wis awairdit the Kyoto Prize in Advancit Technologie in 2009[6] an the IEEE Edison Medal in 2011.[7] He wis awairdit the 2014 Nobel prize in Pheesics an aw, thegither wi Hiroshi Amano an Shuji Nakamura,[8] "for the invention o efficient blue licht-emittin diodes, which haes enabled bricht an energy-savin white licht sources".


  1. "Japanese Journal of Applied Physics". Retrieved 10 November 2015.
  2. "Japanese Journal of Applied Physics". Retrieved 10 November 2015.
  3. Hiroshi Amano, Masahiro Kito, Kazumasa Hiramatsu and Isamu Akasaki: "P-Type Conduction in Mg-doped GaN Treated with Low-Energy Electron Beam Irradiation (LEEBI)", Jpn. J. Appl. Phys. Vol. 28, No.12, December 1989, pp. L2112-L2114, (accepted for pub. Nov. 1989).
  4. I. Akasaki, H. Amano, M. Kito and K. Hiramatsu :”Photoluminescence of Mg doped p-type GaN and electroluminescence of GaN p-n junction LED” J. Cryst. Growth, Vol. 48&49 pp.666-670, 1991
  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. "INAMORI FOUNDATION". Retrieved 10 November 2015.
  7. "IEEE Jack S. Kilby Signal Processing Medal Recipients" (PDF). IEEE. Retrieved 15 Apryle 2012.
  8. "The 2014 Nobel Prize in Physics - Press Release". Nobel Media AB 2014. Retrieved 7 October 2014.

Further readingEedit

  • Insights & Enterprise in PHOTONICS SPECTRA, 54, November 2004
  • Materials Research Society Symposium Proceedings, Volume 639 (2000), pages xxiii-xxv

Freemit airtinsEedit