BLAVETTE , D.

The laser pulses controlling the ion evaporation in Laser-assisted Atom Probe Tomography (La-APT) can simultaneously excite photoluminescence in semiconductor or insulating specimens [1]. An atom probe equipped with approriate focalization and collection optics can thus be coupled with an in-situ micro-photoluminescence (μPL) bench [2] that can...

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Ternary semiconductor alloys based on the AyB1-yC stoichiometry are widely employed in electronic devices and their composition plays a key role in bandgap engineering of heterostructures. We have studied the crucial issue of accuracy in composition measurements of AlyGa1-yN and MgyZn1-y O alloys by Atom Probe Tomography. The results indicate a...

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