2. To map areas millimetres in size with nanometre resolution.
The HS-AFM can make use of the high frame rate by moving between frames to build up a composite image. This allows areas up to millimetres in size to be imaged without a reduction in resolution.
3. To collect spatial maps of the distribution of the physical dimensions of nanostructures with world-leading statistical validity over centimetre sized areas.
The imaging window can be moved across the sample surface in an automatic fashion in order to collect a sparse data set of thousands of frames in a matter of minutes. Custom software then characterises over 80 physical properties of every identified nanostructure on the surface. The processing can be filtered to only measure the nanostructures of interest. The spatial distribution of the nanostructure of interest can then be mapped on top of a calibrated macro image to enable a complete understanding of the macro scale distribution of nano and micro scale structures. The example shown below maps the carbide content in a 9 chrome steel boiler component. This process could also, for example, give you the distribution of mean diameter for all nanostructures orientated at between 30 and 50 degrees and below 2 microns in size.
The system has following capabilities:
• Dynamic strain ≥200 N
• Heated sample stage up to 200oC
• Image in ambient, liquid, gas environments with controllable humidity
• Ability to exchange liquid and gas environments while imaging
• Ability to load samples within an inert glovebox environment
• Sub-atomic height resolution, ~1 nm lateral resolution
• Topography, electrical, thermal and stiffness imaging modes
• Macro and micro optical images.
Please contact us for more information so that we might help you plan your experiments using the active HS-AFM in the ANM NNUF at the University of Bristol.
Please email Oliver.Payton@bristol.ac.uk for more information.
As a first step, please email Oliver.Payton@bristol.ac.uk to contact the ANM for a discussion about the practical feasibility of your proposed research project. Then, you will need to complete a simple NNUF application form. When doing so, please upload an email exchange between you and a member of staff at the ANM, confirming the feasibility of your proposed research. Please see the access page of this website for more detail about the NNUF funded user access scheme.