Cw. Tu et al., GROWTH AND CHARACTERIZATION OF STRAIN-COMPENSATED INASP GAINP AND INGAAS/GAINP MULTIPLE-QUANTUM WELLS/, Materials science & engineering. B, Solid-state materials for advanced technology, 35(1-3), 1995, pp. 166-170
We have shown that strain compensation is effective in increasing the
critical layer thickness or the critical number of periods in a multip
le quantum well (MQW) structure and in improving thermal stability. Co
mpared with a strain-uncompensated InAs0.4P0.6/InP MQW (1.3% strain) o
n InP substrates, strain-compensated InAs0.4P0.6/GayIn1-yP MQW in a p-
i-n structure exhibits superior structural and optical properties, esp
ecially electroabsorption characteristics that is suitable for modulat
or applications at 1.3 mu m. Strain-compensated In0.3Ga0.7As/GayIn1-yP
MQWs on GaAs substrates exhibit better photoluminescence properties a
nd are shown to be more thermally stable.