Dresden 2011 – wissenschaftliches Programm
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DS: Fachverband Dünne Schichten
DS 42: Poster I: Progress in Micro- and Nanopatterning: Techniques and Applications (jointly with O); Spins in Organic Materials; Ion Interactions with Nano Scale Materials; Organic Electronics and Photovoltaics; Plasmonics and Nanophotonics (jointly with HL and O); High-k and Low-k Dielectrics (jointly with DF); Organic Thin Films; Nanoengineered Thin Films; Layer Deposition Processes; Layer Properties: Electrical, Optical, and Mechanical Properties; Thin Film Characterisation: Structure Analysis and Composition; Application of Thin Films
DS 42.87: Poster
Mittwoch, 16. März 2011, 15:00–17:30, P1
Ultimate soft x-ray microspectroscopy for chemical analysis — •Andreas Späth1, Jörg Raabe2, Christian Hub1, Stephan Wenzel1, Benjamin Watts2, and Rainer H. Fink1 — 1Friedrich-Alexander Universität Erlangen-Nürnberg, Physikalische Chemie II and ICMM, Erlangen, Germany — 2Swiss Light Source (SLS), Paul Scherrer Institut, Villigen, Switzerland
Zone-plate based x-ray microscopes offer a wide range of potential applications in fundamental and applied science, in physics, chemistry and material science or in the imaging of biosamples. The present PolLux scanning transmission x-ray microspectroscope is installed at a bending magnet beamline of the Swiss Light Source (SLS) operating from 260 - 1200 eV [1]. Using the latest zone-plate technology, imaging of lateral structures with 12 nm periods was achieved [2]. The available energy range is ideally suited for soft matter investigations. We will present spectromicroscopic results from various organic based materials, like organic hybrid materials, polymer films, organic nanocrystals or biosamples. The recent extension of the detection setup by an electron multiplier offers additional surface-enhanced detection. Thus, we are able to combine bulk and surface sensitivity. In addition, differential phase-contrast imaging offers another detection scheme to improve image contrast. The complementary use of the various detection schemes offers improved knowledge on the investigated soft matter samples. The project is funded by the BMBF under contract 05 KS7WE1.
1. J. Raabe, et al., Rev. Sci. Instrum. 79, 2008, 113704.
2. K. Jefimovs, et al., Phys. Rev. Lett. 99, 2007, 264801.