Jr. Chang et al., High conduction-band offset of AlInAsSb InGaAs multiple quantum wells grown by metalorganic vapor phase epitaxy, APPL PHYS L, 74(23), 1999, pp. 3495-3497
Unstrained Al0.66In0.34As0.85Sb0.15/In0.53Ga0.47As multiple-quantum-well (M
QW) structures have been grown by metalorganic vapor phase epitaxy. Low-tem
perature photoluminescence was performed for these MQW structures. We compa
red the experimental data with the theoretical calculations. The conduction
-band offset ratio of AlInAsSb/InGaAs heterojunction was set as an adjustab
le parameter in the theoretical model. We estimated the conduction-band off
set ratio to be 0.90+/-0.05 for the Al0.66In0.34As0.85Sb0.15/In0.53Ga0.47As
heterojunction. (C) 1999 American Institute of Physics. [S0003-6951(99)048
23-8].