Andreas Timmann
University of Hamburg
24 Papers
266 Citations
Andreas Timmann is an academic researcher from University of Hamburg. The author has contributed to research in topics: Scattering & Grazing-incidence small-angle scattering. The author has an hindex of 15, co-authored 24 publications.
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Papers
Scattering curves of ordered mesoscopic materials.
Stephan Förster,Andreas Timmann,M. Konrad,Carsten Schellbach,Andreas Meyer,Funari Ss,Paul Mulvaney,Knott R +7 more
TL;DR: Analytical expressions for the scattering functions of ordered mesoscopic materials are derived and compared to experimentally determined scattering curves, allowing one to quantitatively describe high-resolution synchrotron small-angle X-ray (SAXS) and neutron scattering (SANS) curves from lipid and block copolymer lyotropic phases, core/shell nanoparticle superstructures, ordered nanocomposites, and ordered mesoporous materials.
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Analysis of microporosity in ordered mesoporous hierarchically structured silica by combining physisorption with in situ small-angle scattering (SAXS and SANS).
Simone Mascotto,Dirk Wallacher,Astrid Brandt,Thomas Hauss,Thomas Hauss,Matthias Thommes,Gerald A. Zickler,Sérgio S. Funari,Andreas Timmann,Bernd M. Smarsly +9 more
TL;DR: The combination of physisorption experiments with simultaneous in situ small-angle X-ray and neutron scattering (SAXS/SANS) was used to elucidate the porosity in mesoporous silica with a trimodal pore structure to find out if they are indeed located between the larger, spherical mesopores.
Modified Langmuir-Blodgett deposition of nanoparticles - measurement of 2D to 3D ordered arrays
L. Chitu,Peter Siffalovic,Eva Majkova,Matej Jergel,Karol Vegso,Stefan Luby,Ignác Capek,Alexander Satka,Jan Perlich,Andreas Timmann,Stephan V. Roth,Jozef Keckes,G. A. Maier +12 more
TL;DR: In this article, the ordered nanoparticle monolayers and multilayers over macroscopic areas were prepared by the modified Langmuir-Blodgett method using this approach, the nanoparticles were formed on the water surface by compression and subsequently transferred onto the substrate by a controlled removal of the water subphase.
Preservation of the morphology of a self-encapsulated thin titania film in a functional multilayer stack: an X-ray scattering study.
Jan Perlich,Mine Memesa,Alexander Diethert,Ezzeldin Metwalli,Weinan Wang,Stephan V. Roth,Andreas Timmann,Jochen S. Gutmann,Peter Müller-Buschbaum +8 more
TL;DR: This investigation provides the evidence that the effort spent to tailor the morphology is justified by the preservation of the self-encapsulated titania morphology that is created by the structure-directing agent throughout the functional multilayer stack build-up.
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Characterization of Mo/Si soft X-ray multilayer mirrors by grazing-incidence small-angle X-ray scattering
Peter Siffalovic,Eva Majkova,L. Chitu,Matej Jergel,Stefan Luby,Jozef Keckes,G. A. Maier,Andreas Timmann,Stephan V. Roth,Toshihide Tsuru,T. Harada,Masaki Yamamoto,Ulrich Heinzmann +12 more
TL;DR: In this paper, a grazing-incidence small-angle X-ray scattering is used for analysis of buried interfaces and the parameters of average interface autocorrelation function can be determined unambiguously.
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