Abstract
In order to investigate the possibilities of in-situ monitoring of GaAsN bulk layer growth and the crystal quality concerning the formation of misfit dislocations, GaAsN bulk samples with different layer thicknesses were grown using a metal-organic vapor phase epitaxy system equipped with a normal incidence optical reflectance setup. High-resolution X-ray diffractometry and synchrotron radiation X-ray topography were used to characterize the samples after growth. Combining the results from topography images and in-situ reflectance data, the formation of the misfit dislocations can be roughly identified from the reflectance curves and thus observed during growth.
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Acknowledgements
This work was supported by the European Community - Research Infrastructure Action under the FP6 “Structuring the European Research Area” Programme (through the Integrated Infrastructure Initiative “Integrating Activity on Synchrotron and Free Electron Laser Science”.)
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Reentilä, O., Lankinen, A., Mattila, M. et al. In-situ optical reflectance and synchrotron X-ray topography study of defects in epitaxial dilute GaAsN on GaAs. J Mater Sci: Mater Electron 19, 137–142 (2008). https://doi.org/10.1007/s10854-007-9306-5
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DOI: https://doi.org/10.1007/s10854-007-9306-5