1:30 PM - 1:45 PM
[21p-C301-1] Evaluation of Transition Energy of InAs/GaSb Superlattice by Using PL and PR Method
Keywords:photoreflectance spectroscopy, superlattice
InAs/GaSb Type2 Superlattice is as material for mid-infrared detectors.
In this research, we measured the transition energies of the samples using the photoreflectance and photoluminescence methods and compared them with theoretical calculations using nextnano.
Two signal peaks were obtained from the PR measurements. From comparison with thoretical calculations, we considered that peak 1 is trasition between the lowest quantum state for electrons and the first quantum state for heavy holes(e1-hh1), and peak2 is the transition between e1-hh2.
In this research, we measured the transition energies of the samples using the photoreflectance and photoluminescence methods and compared them with theoretical calculations using nextnano.
Two signal peaks were obtained from the PR measurements. From comparison with thoretical calculations, we considered that peak 1 is trasition between the lowest quantum state for electrons and the first quantum state for heavy holes(e1-hh1), and peak2 is the transition between e1-hh2.