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Subsurface imaging of coupled carrier transport in GaAs/AlGaAs core-shell nanowires.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Chen, Guannan McGuckin, Terrence Hawley, Christopher J. Gallo, Eric M. Prete, Paola Miccoli, Ilio Lovergine, Nico Spanier, Jonathan E. |
| Copyright Year | 2015 |
| Abstract | We demonstrate spatial probing of carrier transport within GaAs/AlGaAs core-shell nanowires with nanometer lateral resolution and subsurface sensitivity by energy-variable electron beam induced current imaging. Carrier drift that evolves with applied electric field is distinguished from a coupled drift-diffusion length. Along with simulation of injected electron trajectories, combining beam energy tuning with precise positioning for selective probing of core and shell reveals axial position- and bias-dependent differences in carrier type and transport along parallel conduction channels. These results indicate how analysis of transport within heterostructured nanomaterials is no longer limited to nonlocal or surface measurements. |
| File Format | PDF HTM / HTML |
| DOI | 10.1021/nl502995q |
| Alternate Webpage(s) | http://meso.materials.drexel.edu/pubs/JES061_NanoLett2015.pdf |
| PubMed reference number | 25545191 |
| Alternate Webpage(s) | https://doi.org/10.1021/nl502995q |
| Journal | Medline |
| Volume Number | 15 |
| Issue Number | 1 |
| Journal | Nano letters |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
