| AVS 64th International Symposium & Exhibition | |
| Applied Surface Science Division | Monday Sessions |
| Session AS+BI-MoA |
| Session: | Practical Surface Analysis: Complex, Organic and Bio-systems |
| Presenter: | Andreas Thissen, SPECS Surface Nano Analysis GmbH, Germany |
| Authors: | A. Thissen, SPECS Surface Nano Analysis GmbH, Germany P. Dietrich, SPECS Surface Nano Analysis GmbH, Germany S. Bahr, Enviro Analytical Instruments GmbH, Germany M. Kjaervik, Bundesanstalt für Materialforschung und -prüfung (BAM), Germany W. Unger, Bundesanstalt für Materialforschung und -prüfung (BAM), Germany |
| Correspondent: | Click to Email |
non-destructive chemical analysis of solid surfaces. To fulfill this task existing ESCA tools
combine reliable quantitative chemical analysis with comfortable sample handling concepts,
integrated into fully automated compact designs.
Over the last years it has been possible to develop XPS systems, that can work far beyond
the standard conditions of high or ultrahigh vacuum. Near Ambient Pressure (NAP) XPS has
become a fastly growing field in research inspiring many scientist to transfer the method to
completely new fields of application. Thus, by crossing the pressure gap, new insights in
complicated materials systems have become possible using either synchrotron radiation or
laboratory X-ray monochromators as excitation sources under NAP condtions.
Based on this experience SPECS Surface Nano Analysis GmbH has developed a
revolutionary tool to realize the long existing dream in many analytical laboratories:
reproducible chemical surface analysis under any environmental condition. EnviroESCA
allows for different applications, like extremely fast solid surface analysis of degassing (but
also non-degassing) samples, ESCA analysis of liquids or liquid-solid interfaces, chemical
analysis of biological samples, materials and device analysis under working conditions.
After introduction of the technological realization a comprehensive survey of results will be
given starting from standard solid conductive samples under different pressure conditions,
bulk insulators with environmental charge compensation applied, high throughput analysis
of batches of similar objects, geological samples, chemical analysis of pharmaceuticals to
the comparative analysis of ultrapure liquid water with different aqueous solutions.
The application of Near Ambient Pressure XPS to biological specimen from plants and
animals, biofilms and bacteria, as well as food samples is a completely new field for
electron spectroscopic studies of the surface chemical composition.
An outlook is presented on the application to electrochemical and other in-operando devices.
Finally the influence of the ambient conditions on quantification in XPS will be
demonstrated and discussed.
This project has received funding from the EMPIR programme co-financed by the Participating
States and from the European Union’s Horizon 2020 research and innovation programme.