Scanning Auger Nanoprobe

The Scanning Auger Nanoprobe is one of only two in Australia and is able to map chemical information across a surface. This instrument combines high resolution electron microscopy with the ability to determine elemental composition, resulting the analysis of surface chemistry with a spatial resolution of 10 nanometres. Due to the nature of the species detected on the surface, the Scanning Auger Nanoprobe is very surface sensitive and able to detect low atomic number materials.

Contact

Instrument Leader: Professor Sarah Harmer
Scanning Auger Nanoprobe Facility Manager: Dr Alexander Sibley

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Instrument details and specifications

PHI 710 Scanning Auger Nanoprobe
Field Emission Electron Source
Secondary electron detector
Cylindrical Mirror Electron Energy Analyser – reduces shadowing.
Argon Ion sputter source -10kv-5000kv

Sample requirements

Samples must be solid, dry and conductive. Sample dimensions up to 50mm x 50mm x 20mm

Application examples

^{Left: SEM image of Few-layer black phosphorous

Right: Overlayed Auger Electron maps of phosphorous (red), silicon (blue) and carbon (black), obtained at the same location.}

^{From DOI: 10.1002/smtd.201700260}

^{Left: SEM image of N2 plasma treated Graphene-Oxide. Right: Carbon Auger Electron elemental map obtained at the same location.}

^{From DOI: 10.1039/C6CC04032B}

^{Left: SEM image mild steel sample exposed to molten aluminium. Right: Overlayed Auger Electron elemental maps of iron (red) and aluminium (blue). Areas that show up purple indicate a mixture (eutectic) where aluminium has intruded into the steel surface.}

^{From DOI: 10.1016/j.est.2018.03.001}

^{Left: SEM image of a polished 3D printed 316 stainless steel surface. Right: Overlayed Auger Electron elemental maps of chromium (red), iron (green) and nickel (blue), taken at the same location.}