Utilizing glancing angle deposition, we control the geometry of porous tin oxide films. The nanorod-like structure of the deposited films can be tuned to form intricate patterns, such as spirals or zig-zags. We analyze each pattern via microscopy in combination with computer modeling and determine the film with the highest surface area to material ratio. The film is then further characterized with respect to the potential application in gas sensing and catalysis, focusing on temperature stability and metal loading. The results are available in a new Materials Chemistry and Physics paper.



The advent of the hydrogen economy is accompanied by increased demand for sensing devices. In our recent paper, we introduce an improvement of WO3-based hydrogen sensors via deposition of CuO nanoclusters that lead to the formation of nano p–n junctions on the surface. The preparation techniques used in the study are scalable and compatible with standard industrial processes. Furthermore, the improvement was achieved without the use of noble metals. The paper is free to access for the next 50 days through this link.



In an overview published in Topics in Catalysis, we report on the recent developments of liquid cells for photoemission electron microscopy. We discuss challenges associated with the design of membranes for photon in - electron out spectroscopy, examine advantages and disadvantages of various cell geometries, and highlight the role of microscopy in a statistical analysis of liquid spectroscopy experiments.



A pathway for preparation of low-dimensional tungsten oxide nanostructures via physical vapor deposition in a reactive atmosphere of atomic oxygen is presented in our new Journal of Physics: Condensed Matter paper. The multi-technique study reveals two types of 1D tungsten oxide chains that exhibit support mediated charge redistribution, opening avenue for future functionalization.



Changes of composition and local atomic co-ordination of As40Se60 nanolayers induced by green laser illumination were investigated within a CERIC-ERIC collaboration. The photoinduced effects, their reversibility, and possible utilization pathways are discussed in a new Applied Nanoscience paper.



Our Surface Science paper has been featured on the Elsevier Physics twitter feed!



Pursuing antiferromagnetic spintronics, we determine the structure of the tetragonal phase of CuMnAs via a combination of several experimental and theoretical methods. The results, published in Physical Review B, reveal the occupation of basal positions in the lattice by copper, not manganese (a possible inverted phase). The paper is also available on arXiv.



Volume 671 of Surface Science features our paper on the growth of cerium oxide on Cu(100) on the front cover!



Our newest paper detailing growth of cerium oxide on Cu(100) has been published in Surface Science. The highlight of the work is the observation of three-way interaction between surface oxygen chemical potential, oxygen spillover between copper and cerium oxide, and step/surface energies during physical vapor deposition of cerium. The paper is free to access for the next 50 days through this link.



A press release from Forschungszentrum Jülich covers our recent paper on electrochemical measurements in a photoemission electron microscope, including my artistic rendition of the experiment. You can read the press release either on the home page of Forschungszentrum Jülich or directly through this link.



With the new year comes a new position. I have joined Peter Grünberg Institut 6 of Forschungszentrum Jülich as a postdoctoral researcher. I will be taking care of LEEM/PEEM endstation at UE56/1-SGM (BESSY II, Berlin, Germany). Please, note the updated contact information:

Helmholtz Zentrum Berlin
Albert-Einstein-Str. 15
12489 Berlin, Germany
Forschungszentrum Jülich GmbH
Peter Grünberg Institut 6
52425 Jülich, Germany


Tackling the issue of photon in - electron out spectroscopy of liquids, we showcase the ability to perform electrochemical measurements in a photoemission electron microscope (PEEM). The methodology, along with a proof-of-concept experiment, is described in our recently accepted JACS paper.



Special issue of Ultramicroscopy (LEEM/PEEM-10) featuring our paper on caveats of multi length-scale characterization in model chemical conversion is live. The paper is free to access for the next 50 days through this link.



Our latest paper on polyoxometalate clusters is featured on the cover of the current issue of JACS (vol. 139, num. 41)! You can read the paper here.



The winners of the ALS “Science as Art” competition were annnounced at the ALS User Meeting and my entry, unfortunately, did not succeed. I would like to congratulate the winners and thank all the participants for a fierce competition. See you next year!

You can see the winning entries here.


Finalist entries to the ALS “Science as Art” competition have been chosen and mine is among them! While the winner will be chosen by the attendees of the ALS User Meeting (October 2–4, 2017), a “people’s choice” category can be voted for at

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