Effects of VLS and VS mechanisms during shell growth in GaAs-AlGaAs core-shell nanowires investigated by transmission electron microscopy
Sign Up to like & getrecommendations! Published in 2017 at "Materials Science in Semiconductor Processing"
DOI: 10.1016/j.mssp.2016.11.018
Abstract: We investigated by means of transmission electron microscopy (TEM) the final growth stage of GaAs/AlGaAs core-shell nanowires (NWs) self-assembled by Au-catalyst assisted metalorganic vapor phase epitaxy (MOVPE). TEM observations and energy dispersive x-ray spectroscopy revealed… read more here.
Keywords: core shell; microscopy; shell; algaas ... See more keywords
Role of the substrate in monolithic AlGaAs nonlinear nanoantennas
Sign Up to like & getrecommendations! Published in 2017 at "Nanophotonics"
DOI: 10.1515/nanoph-2017-0026
Abstract: Abstract We report the effect of the aluminum oxide substrate on the emission of monolithic AlGaAs-on-insulator nonlinear nanoantennas. By coupling nonlinear optical measurements with electron diffraction and microscopy observations, we find that the oxidation-induced stress… read more here.
Keywords: substrate monolithic; nonlinear nanoantennas; algaas; role substrate ... See more keywords
Outermost AlGaO x native oxide as a protection layer for GaAs/AlGaAs core-multishell nanowires
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DOI: 10.35848/1882-0786/ab9874
Abstract: We propose native oxide AlGaOx outer protective layer for GaAs/AlGaAs core-multishell nanowires to provide yearly stable stronger optical and electrical confinement within the nanowire core. We prepared core-multishell NWs consisting of GaAs core, Al0.2Ga0.8As multi-layered… read more here.
Keywords: algaas; layer; gaas; core multishell ... See more keywords