CHAUVEAU , J. M.

The optical properties of homoepitaxial non-polar (Zn,Mg)O/ZnO single quantum wells (QWs) grown by molecular beam epitaxy on a-plane (11-20) ZnO substrates are investigated by using reflectance and continuous wave photoluminescence spectroscopies. The reflectivity and CW-PL spectra measured at low temperature reveal strong in-plane optical...

Excitons recombination dynamics in ZnMgO alloy have been studied by time-resolved photoluminescence according to temperature. At low temperature, localization effects of the exciton are found to play a significant role. The photoluminescence (PL) decays are bi-exponential. The short lifetime has a constant value, whereas the long lifetime shows...

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...