The pressure dependence of the low temperature photoluminescence (PL) in self-organized In 0X5 Al 0X5 As/Al 0X25 Ga 0X75 As quantum dots (QD) has been investigated up to 8 GPa. Interesting features of the QD PL observed in our study are: (i) a decrease in the linewidth up to 1.8 GPa, (ii) no significant shift in the PL energy between 0.8 and 2.2 GPa, (iii) anticrossing behavior in the region of 2.2 to 2.6 GPa, and (iv) complete quenching of PL beyond 2.6 GPa. The observed pressure behavior is explained on the basis of the crossing between G and X conduction bands.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.