Zi. Alferov et al., A LOW-THRESHOLD INJECTION HETEROJUNCTION LASER-BASED ON QUANTUM DOTS,PRODUCED BY GAS-PHASE EPITAXY FROM ORGANOMETALLIC COMPOUNDS, Semiconductors, 30(2), 1996, pp. 197-200
A low-threshold injection laser with an active region based on quantum
dots in the In0.5Ga0.5As/GaAs system has been produced by gas-phase e
pitaxy from organometallic compounds. At 300 K, the threshold current
density was 150 A/cm(2) for a strip 1780 mu m long and 60 mu m wide. T
he threshold current density in the range 80-220 K is 50-60 A/cm(2) an
d its temperature dependence is described by characteristic temperatur
e T-o=530 K. (C) 1996 American Institute of Physics.