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Cross-sectional STEM images viewed from direction. (a) Entire region and (b) magnified image of the and facets. The white broken square indicates the shape of before regrowth.
Microscopic PL spectra from the , , and MQWs at RT. The inset figure shows the schematic sample structure, and arrows indicate the directions for excitation and collection.
Temperature dependence of integrated PL intensities of the QW and the conventional -oriented QW. The intensities were normalized by those at .
Temperature dependence of PL decay times , radiative , and nonradiative lifetimes.
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