ESCA Microscopy
Welcome to ESCAmicroscopy @ ElettraThe Scanning photoelectron microscope (SPEM) hosted at the ESCAmicroscopy beamline allows to combine chemically surface sensitive measurements with high spatial resolution. A beam spot down to 120 nm and energy sensitivity within 180 meV using a third generation X-ray source providing more than 109 photons/s in the probe has opened the opportunity for material science to perform micro-characterization on a spatial scale comparable to that of the processes and the phases occurring on morphologically and chemically complex surfaces. The experimental apparatus allows to carry out a manifold of experiments, aiming at quantitative and qualitative chemical characterisation of morphologically complex materials including chemical reactions and mass transport processes leading to lateral changes in the composition, morphology and electronic properties of materials. (Research) (Beamline description) |
Research highlights
Graphene oxide windows for in situ environmental cell photoelectron spectroscopy
We develop a simple environmental cell with graphene oxide windows that are transparent to low-energy electrons (down to 400 eV), and demonstrate the feasibility of X-ray photoelectron spectroscopy on samples such aqueous salt solution. 
Soft X-ray Imaging and Spectromicroscopy: New Insights in Chemical State and Morphology of the Key Components in Operating Fuel-Cells.
Monitoring of the redox reactions in simplified versions of PEFC and SOFC by the implementation of synchrotron-based soft X-ray microscopy methods, allows to explore the evolving structure and chemical composition of some key fuel cell components. 
In situ study of electrochemical activation and surface segregation of the SOFC electrode material
Mixed-conducting perovskite-type electrodes which are used as cathodes in solid oxide fuel cells (SOFCs) exhibit pronounced performance improvement after cathodic polarization. The current in situ study addresses the mechanism of this activation process which is still unknown. 
Synthesis and Characterization of Small Dimensional Structures of Er-Doped SnO2 and Erbium−Tin−Oxide
A vapor-solid thermal method, avoiding the presence of catalyst or external substrate, has been employed to grow the Er-doped SnO2 elongated structures, different from the most commonly used sol–gel synthesis method.
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Where you can find us
Next conference: E-MRS 2013 SPRING MEETING
May 27-31 -Strasbourg, France
User Area
Proposal SubmissionWe invite users and collabrators to discuss their proposals with the beamline local contacts well in advance before the submission deadline. This is crucial for a careful assesment of the experiment feasibility and may lead to improvements in the proposed experimental plan. In a restricted number of cases, when doubts arise about the suitability of your samples or the planned measurements are too close to the microscope resolution limit, it may be possible for you to arrange a test. Our website provides a wealth of informaiton on experiment feasibilty and proposal submission. For more info, please vist the user info section. |
Call for proposalsThe deadline for proposal submission for beamtime allocation from July 1st to December 31th, 2013 will be March 15th, 2013 at 4:30 pm (MET). |
Developments
New Undulator
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New Piezoelectric Stage
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