Direct imaging of the spatial diffusion of excitons in single semiconductor nanowires
We use spatially and temporally resolved photoluminescence to measure excitondiffusion in single zinc blende GaAs/AlGaAs core/shell and mixed phase InPnanowires.Excitons in the single phase GaAs/AlGaAs nanowires are seen to diffuse rapidly throughout the nanowire with a measured diffusion constant ranging from 45 to 100 cm²/s, while in the mixed phase, InPnanowireelectrons and holes are seen to rapidly localize to the quantum confined states in the zinc blende and wurtzite segments,...[Show more]
|Collections||ANU Research Publications|
|Source:||Applied Physics Letters|
|01_Fickenscher_Direct_imaging_of_the_spatial_2011.pdf||Published Version||2.25 MB||Adobe PDF|
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