Comparative analysis of efficiency limitations in GaN-based blue laser diodes

  • Joachim Piprek
  • Published 2016 in
    2016 International Conference on Numerical…
Nobel laureate Shuji Nakamura predicted in 2014 that GaN-based laser diodes are the future of solid state lighting. However, blue GaN-lasers still exhibit less than 40% power conversion efficiency, while GaN-based blue light-emitting diodes reach up to 84% This paper investigates non-thermal reasons behind this difference by comparative numerical device… CONTINUE READING