The 2014 Nobel Prize for Physics was shared by Isamu Akasaki, Hiroshi Amano, and Shuji Nakamura. These papers are the text of the address given in conjunction with the award.
Nobel Lecture: Background story of the invention of efficient blue InGaN light emitting diodes
Shuji Nakamura
Rev. Mod. Phys. 87, 1139 (2015)]
Nobel Lecture: Growth of GaN on sapphire via low-temperature deposited buffer layer and realization of p-type GaN by Mg doping followed by low-energy electron beam irradiation
Hiroshi Amano
Rev. Mod. Phys. 87, 1133 (2015)
Nobel Lecture: Fascinated journeys into blue light
Isamu Akasaki
Rev. Mod. Phys. 87, 1119 (2015)