Thomas Dursap (École Centrale de Lyon) GaAs nanowires: crystal phase engineering and application to water photoelectrolysis.

The Thesis prize 2023 has been awarded to Thomas Dursap.

The objectives of his thesis was to grow and characterize GaAs and GaP nanowires (NWs) obtained by molecular beam epitaxy (MBE), on silicon substrates and used as electrodes for light-driven water splitting. The geometry, morphology of these objects were studied and optimized to maximize the electrode efficiency. The crystal structure of such NWs were also intensively investigated, and in depth characterizations were performed to understand the growth phenomena. Ref.