Schematic energy band diagram for the GaInNAs QW with multiple barriers.
(Color online) PL spectra measured at room temperature for QW samples with GaAs barrier (K1, triangles), GaNAs barrier (K2, circles), and barrier (K4, squares).
(Color online) High resolution x-ray rocking curve for samples K2 and K3.
(Color online) (a) Cross-sectional -contrast image of sample K3. The line profile in the inset shows the conduction band profile of the designed K3 QW structure. (b) Intensity profile around the QW and barriers.
(Color online) -contrast image of sample K5. The conduction band profile of the designed K5 QW structure is drawn on the image.
(Color online) SIMS depth profiles of nitrogen concentrations in samples K2 (circle) and K5 (triangle).
(Color online) (a) PL peak wavelength of GaInNAs QW and (b) nitrogen ion count taken from SIMS analysis as functions of the thickness of the GaNAs layer.
Summary of samples of GaInNAs QW with different barrier structures.
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