Real-space visualization of energy loss and carrier diffusion in a semiconductor nanowire array using 4D electron microscopy

Bose R, Sun J, Khan JI, Shaheen BS, Adhikari A, Ng TK, Burlakov V, Parida MR, Priante D, Goriely A, Ooi BS, Bakr OM
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et al

A breakthrough in the development of 4D scanning ultrafast electron microscopy is described for real-time and space imaging of secondary electron energy loss and carrier diffusion on the surface of an array of nanowires as a model system, providing access to a territory that is beyond the reach of either static electron imaging or any time-resolved laser spectroscopy.

Keywords:

carrier dynamics

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real-space imaging

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nanowires

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carrier diffusion

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ultrafast electron microscopy

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surface dynamics

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InGaN