V-SMMART NANO

Volumetric Scanning Microwave Microscopy Analytical and Research Tool for Nanotechnology

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 Obiettivo del progetto (Objective)

'This project will produce a new tool, the Volumetric Scanning Microwave Microscope (VSMM), for non-destructive 3D nanoscale structural characterisation. Full development of this new tool will take place ready for commercial exploitation within the project duration. The consortium, comprising three SMEs, a Large Company, an RTD Performer and two Research Institutions, will develop and commercialise the VSMM. The VSMM will probe the local reflection and transmission microwave spectroscopy of key materials properties, measuring complex permittivity, conductivity, resistivity, and magnetic response, and hence structural and chemical material constitution with 3D nanoscale resolution. Workpackages will address the technical development of the tool and demonstrate its ability to characterise the 3D structure in situ at the nanoscale with application to relevant real life systems including nanoparticle drug uptake in biological cells, domain structure in ferroelectric devices and trap mechanisms in solar cells. Integrated into this process is ease of use through dedicated work-flows and intuitive real time visualisation for results optimisation and processing. Methods for calibration and provision of traceability are incorporated into the project from the start: this will ensure that VSMM measurements will be quantitatively meaningful and optimised for accuracy and will ensure the most efficient route to commercialisation and uptake of the VSMM. The project aims to produce significant impact for European SMEs, they will benefit both from the market for SPM probe tips and ancillary equipment (e.g. calibration kits) for the VSMM and as end-users. Finally, the fact that the VSMM will utilise SPM cantilever-probe technology will ensure that it is readily compatible with a full range of other SPM-based tools – opening up its future role in integrated multi-physical materials characterisation at the nanoscale.'

Introduzione (Teaser)

Mapping the 3D spatial distribution of microwave transmission and reflection properties of materials at nano-scale resolution was not possible until now. EU-funded scientists have already produced the first 2D images of living cells.

Descrizione progetto (Article)

Inability to map the spatial distribution of electromagnetic properties in materials with nanometre resolution represents a barrier to adequate characterisation in numerous fields. A novel scanning probe microwave microscope platform under development within the scope of the EU-funded project 'Volumetric scanning microwave microscopy analytical and research tool for nanotechnology' (http://www.vsmmartnano.com (V-SMMART NANO)) promises an unprecedented 3D view of local radio frequency (RF) transmission and reflection properties.

Scientists are targeting materials research and biomedicine for a start and are ensuring conformation with EU standards to facilitate commercialisation. The team expects to sell 20 setups per year in the short term in the EU, growing quickly to 100 per year worldwide.

Much of the first reporting period was focused on developing the forward reflection mode (S11) of the current scanning microwave microscopy (SMM) technology and extending capabilities to include forward transmission (S21) measurement. Scientists exploited both experimental and theoretical tools to measure impedance and validate system designs. As a result, the team produced the first S21 transmission measurements of a biological sample in air and in solution using 2D SMM.

The team has also developed calibration kits to facilitate accurate measurement and quantification of signals leading to extraction of the intrinsic electromagnetic properties of the sample. Fully quantified spatial distribution images of some measurements have been produced already.

Scientists have now manufactured the first volumetric SMM (VSMM) cantilevers, the functional arms that manipulate the measurement mechanism at their tips. Finally, modelling software to describe 3D RF wave propagation has been tested in preparation for optimisation of VSMM performance.

V-SMMART NANO technology for investigating the 3D spatial distribution of electromagnetic properties of materials will be unique not only among commercial instruments but also among those now used in laboratories. The ability to analyse the full depth of the sample and probe sub-surface structure and materials properties will foster important developments in fields with direct applicability to EU citizens, including photovoltaics and health care. It will also promote fundamental understanding of materials in a variety of basic research programmes to form the foundations of a next generation of nanomaterials.