Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Thorsten, Mehrtens"'
Autor:
Christoph Mahr, Jakob Stahl, Beeke Gerken, Valentin Baric, Max Frei, Florian F. Krause, Tim Grieb, Marco Schowalter, Thorsten Mehrtens, Einar Kruis, Lutz Mädler, Andreas Rosenauer
Publikováno v:
Nano Select, Vol 5, Iss 4, Pp n/a-n/a (2024)
Abstract Formation of hetero‐contacts between particles of different materials in nanoparticle hetero‐aggregates can lead to new functional properties. Improvement of the functional behavior requires a detailed characterization of mixing between
Externí odkaz:
https://doaj.org/article/bb5f6c734fc04ee5ab2b8e90a9c1c3a9
Autor:
Christoph Mahr, Knut Müller-Caspary, Matthias Graf, Anastasia Lackmann, Tim Grieb, Marco Schowalter, Florian F. Krause, Thorsten Mehrtens, Arne Wittstock, Jörg Weissmüller, Andreas Rosenauer
Publikováno v:
Materials Research Letters, Vol 6, Iss 1, Pp 84-92 (2018)
Reversible macroscopic length changes in nanoporous structures can be achieved by applying electric potentials or by exposing them to different gases or liquids. Thus, these materials are interesting candidates for applications as sensors or actuator
Externí odkaz:
https://doaj.org/article/40ec3464803d4799ab4b7876fdf2a9a3
Autor:
Beeke Gerken, Christoph Mahr, Jakob Stahl, Tim Grieb, Marco Schowalter, Florian F. Krause, Thorsten Mehrtens, Lutz Mädler, Andreas Rosenauer
Publikováno v:
Particle & Particle Systems Characterization.
Autor:
Florian F. Krause, Marco Schowalter, Beeke Gerken, Dennis Marquardt, Tim Grieb, Thorsten Mehrtens, Christoph Mahr, Andreas Rosenauer
Publikováno v:
Ultramicroscopy. 245:113661
The ISTEM mode for TEM has been demonstrated to have several advantages in regard to resolution and precision. While previous works primarily focussed on the advantages due to the reduced spatial coherence, the actual image contrast, i.e. how bright
Autor:
Christoph Mitterbauer, Lisa Fitzek, Marco Schowalter, Christoph Mahr, Thorsten Mehrtens, Arne Wittstock, Andreas Rosenauer, Anastasia Lackmann
Publikováno v:
Materialia. 2:131-137
Properties of dealloyed nanoporous gold (npAu) in catalysis, sensing or actuation applications depend on its structure and chemical composition. NpAu is obtained by corrosion of alloys of gold and a less noble metal such as silver or copper. Structur
Autor:
Dennis, Marquardt, Marco, Schowalter, Florian F, Krause, Tim, Grieb, Christoph, Mahr, Thorsten, Mehrtens, Andreas, Rosenauer
Publikováno v:
Ultramicroscopy. 227
In this paper we study the effect of lens aberrations (spherical aberration and astigmatism), beam tilt, contamination and shot noise on the accuracy and precision of position determination in imaging scanning transmission electron microscopy (ISTEM)
Strain analysis from nano-beam electron diffraction: Influence of specimen tilt and beam convergence
Autor:
Florian F. Krause, Christoph Mahr, Tim Grieb, Andreas Rosenauer, Marco Schowalter, Dieter Bimberg, Thorsten Mehrtens, Roman Sellin, Knut Müller-Caspary, Dennis Zillmann
Publikováno v:
Ultramicroscopy
Strain analyses from experimental series of nano-beam electron diffraction (NBED) patterns in scanning transmission electron microscopy are performed for different specimen tilts. Simulations of NBED series are presented for which strain analysis giv
Autor:
Marco Schowalter, Tim Grieb, Matthias J. Graf, Arne Wittstock, Jörg Weissmüller, Christoph Mahr, Knut Müller-Caspary, Florian F. Krause, Andreas Rosenauer, Thorsten Mehrtens, Anastasia Lackmann
Publikováno v:
Materials Research Letters, Vol 6, Iss 1, Pp 84-92 (2018)
Materials Research Letters 1 (6): 84-92 (2018-01-02)
Materials research letters
Materials Research Letters 1 (6): 84-92 (2018-01-02)
Materials research letters
Reversible macroscopic length changes in nanoporous structures can be achieved by applying electric potentials or by exposing them to different gases or liquids. Thus, these materials are interesting candidates for applications as sensors or actuator
Autor:
M. P. Chauvat, Pierre Ruterana, Andreas Rosenauer, Thi Huong Ngo, Nicolas Chery, Tim Grieb, Bernard Gil, Knut Müller-Caspary, Aimeric Courville, P. de Mierry, Marco Schowalter, Benjamin Damilano, Thorsten Mehrtens, Florian F. Krause
Publikováno v:
Journal of Microscopy. 268:305-312
In this work, we analyse the microstructure and local chemical composition of green-emitting Inx Ga1-x N/GaN quantum well (QW) heterostructures in correlation with their emission properties. Two samples of high structural quality grown by metalorgani
Autor:
Tim Grieb, Dennis Marquardt, Andreas Rosenauer, Christoph Mahr, Thorsten Mehrtens, Florian F. Krause, Marco Schowalter
Publikováno v:
Ultramicroscopy. 227:113325
In this paper we study the effect of lens aberrations (spherical aberration and astigmatism), beam tilt, contamination and shot noise on the accuracy and precision of position determination in imaging scanning transmission electron microscopy (ISTEM)