M
Margit Zacharias
Researcher at University of Freiburg
Publications - 301
Citations - 13457
Margit Zacharias is an academic researcher from University of Freiburg. The author has contributed to research in topics: Photoluminescence & Silicon. The author has an hindex of 55, co-authored 295 publications receiving 12689 citations. Previous affiliations of Margit Zacharias include University of Rochester & Technion – Israel Institute of Technology.
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Changes of the absorption cross section of Si nanocrystals with temperature and distance.
TL;DR: This study shows that the ACS of Si NCs cannot be considered as independent on experimental conditions and sample parameters and demonstrates that roughly doubling the barrier thickness induces a decrease of the ACS.
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Extended View on the Vapor–Liquid–Solid Mechanism for Oxide Compound Nanowires: The Role of Oxygen, Solubility, and Carbothermal Reaction
TL;DR: The Si nanowire growth can be well explained by the classical vapor-liquid-solid (VLS) process taking into account the respective Au-Si phase diagram as discussed by the authors.
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Fabrication of micron-sized tetrahedra by Si〈1 1 1〉 micromachining and retraction edge lithography
Rajeevan Kozhummal,Rajeevan Kozhummal,Erwin Berenschot,Henri Jansen,Niels Roelof Tas,Margit Zacharias,Miko Elwenspoek,Miko Elwenspoek +7 more
TL;DR: In this article, a new method is proposed to prepare micron-sized anisotropic-shaped particles: tetrahedral structures bounded by 〈 1 1 1〉 faces.
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Analysis of the Growth of Laterally Aligned SnO2 Nanowires by Thermodynamic Considerations and Experiments
Jasmin-Clara Bürger,Sebastian Gutsch,Yi Thomann,Ralf Thomann,Björn Christian,Oliver Ambacher,Margit Zacharias +6 more
TL;DR: In this paper, the experimental tuning of the growth of freestanding SnO2 nanowires to a laterally aligned nanowire growth mode was reported, and thermodynamic considerations taking into acc...
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Dielectrophoretic investigation of Bi2Te3 nanowires—a microfabricated thermoelectric characterization platform for measuring the thermoelectric and structural properties of single nanowires
Z. Wang,Danny Kojda,N. Peranio,Michael Kroener,R. Mitdank,William Toellner,Kornelius Nielsch,Saskia F. Fischer,Sebastian Gutsch,Margit Zacharias,Oliver Eibl,Peter Woias +11 more
TL;DR: The thermoelectric platform fabricated with optimally designed DEP electrodes results in a yield of nanowire assembly of approximately 90% under an applied peak-to-peak ac signal Vpp = 10 V and frequency f = 20 MHz within a series of 200 experiments.