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Article Dans Une Revue Journal of Applied Physics Année : 2016

Statistical correction of atom probe tomography data of semiconductor alloys combined with optical spectroscopy: The case of Al0.25Ga0.75N

Résumé

The ternary semiconductor alloy Al0.25Ga0.75N has been analyzed by means of correlated photoluminescence spectroscopy and atom probe tomography (APT). We find that the composition measured by APT is strongly dependent on the surfaceelectric field, leading to erroneous measurements of the alloy composition at high field, due to the different evaporation behaviors of Al and Ga atoms. After showing how a biased measurement of the alloy content leads to inaccurate predictions on the optical properties of the material, we develop a correction procedure which yields consistent transition and localization energies for the alloy photoluminescence.
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hal-01928851 , version 1 (20-11-2018)

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Lorenzo Rigutti, L. Mancini, Daniel Hernandez Maldonado, Williams Lefebvre, E. Giraud, et al.. Statistical correction of atom probe tomography data of semiconductor alloys combined with optical spectroscopy: The case of Al0.25Ga0.75N. Journal of Applied Physics, 2016, 119 (10), pp.105704. ⟨10.1063/1.4943612⟩. ⟨hal-01928851⟩
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