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.
Papers
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Journal ArticleDOI
Transition from freestanding SnO2 nanowires to laterally aligned nanowires with a simulation-based experimental design.
TL;DR: By means of finite element simulations, it is determined that a higher volumetric flow and a reduced process pressure will result in a preferred laterally aligned nanowire growth, which leads to a higher species dilution.
Journal ArticleDOI
Optical Properties of Silicon Nanocrystals in Silicon Dioxide Matrix Over Wide Ranges of Excitation Intensity and Energy
O. A. Shalygina,Irina Kamenskikh,Denis M. Zhigunov,V. Yu. Timoshenko,Pavel K. Kashkarov,Margit Zacharias,Minoru Fujii +6 more
TL;DR: In this paper, photoluminescence properties and optical absorption of the structures of silicon nanocrystals (nc-Si) in silicon dioxide matrix (SiO 2 ) are investigated in extended ranges of the excitation photon energy from 3 to 20 eV and the photon flux from 10 16 to 10 19 cm -2.
Journal ArticleDOI
Picosecond dynamics of photoexcited carriers in interacting silicon nanocrystals
Miroslav Kořínek,František Trojánek,Daniel Hiller,Sebastian Gutsch,Margit Zacharias,Christian Kübel,Petr Malý +6 more
TL;DR: In this article, the effect of inter-nanocrystal carrier interaction on Auger recombination was investigated in a special set of samples containing silicon nanocrystals embedded in silicon oxide with well-defined geometry.
Journal ArticleDOI
Quantum behavior of terahertz photoconductivity in silicon nanocrystals networks
V. Pushkarev,T. Ostatnický,Hynek Němec,Tomáš Chlouba,František Trojánek,Petr Malý,Margit Zacharias,Sebastian Gutsch,Daniel Hiller,Petr Kužel +9 more
TL;DR: In this paper, the authors derived a quantum mechanical expression for the linear terahertz response of nanocrystals and applied it to quantitatively interpret all the measured data within a single model.
Book ChapterDOI
High-Bandgap Silicon Nanocrystal Solar Cells: Device Fabrication, Characterization, and Modeling
Philipp Löper,Mariaconcetta Canino,Manuel Schnabel,Caterina Summonte,Stefan Janz,Margit Zacharias +5 more
TL;DR: In this paper, an illumination-dependent analysis of Si NC p-i-n solar cells with an intrinsic region made of Si nanocrystals embedded in silicon carbide is carried out within the framework of the constant field approximation.