S. Jourba et al., High-quality highly strained InGaAs quantum wells grown on InP using (InAs)(n)(GaAs)(0.25) fractional monolayer superlattices, APPL PHYS L, 75(2), 1999, pp. 220-222
(InAs)(n)/(GaAs)(m) (n =1.5-2, m = 0.25 monolayer) fractional monolayer sup
erlattices (FMS) have been used to grow highly strained InGaAs quantum well
s (QWs) on InP by molecular beam epitaxy. We show that FMS quantum wells ha
ve better structural and optoelectronic properties compared to equivalent Q
Ws grown using standard procedures. In addition, the onsets of the three-di
mensional growth mode and plastic relaxation are delayed, which allows the
highest emission wavelength in the InxGa1-xAs/InGaAlAs/InP system to be ext
ended up to 2.35 mu m at high growth temperatures (500 degrees C). (C) 1999
American Institute of Physics. [S0003-6951(99)00228-4].