Abstract
We correlate structure analyzed by transmission electron microscopy with photo- and cathodoluminescence studies of GaN/Al2O3(0001) and GaN/SiC(0001) and show that an additional UV line at 364nm/3.4eV can be connected to the occurrence of stacking faults. We explain the occurrence of this line by a model that is based on the concept of excitons bound to stacking faults that form a quantum well of cubic material in the wurtzite lattice of the layer material. The model is in reasonable agreement with the experimental observations.
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Albrecht, M., Christiansen, S., Salviati, G. et al. Luminescence Related to Stacking Faults in Heterepitaxially Grown Wurtzite GaN. MRS Online Proceedings Library 468, 293–298 (1997). https://doi.org/10.1557/PROC-468-293
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DOI: https://doi.org/10.1557/PROC-468-293