Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Friedemann Völklein"'
Autor:
Michael Florian Peter Wagner, Anna Sarina Paulus, Wilfried Sigle, Joachim Brötz, Christina Trautmann, Kay-Obbe Voss, Friedemann Völklein, Maria Eugenia Toimil-Molares
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-12 (2023)
Abstract The electrical transport in bismuth nanowires is strongly influenced by both sample geometry and crystallinity. Compared to bulk bismuth, the electrical transport in nanowires is dominated by size effects and influenced by surface states, wh
Externí odkaz:
https://doaj.org/article/ef0e6f05e66046bcb8d84d667553bf7f
Publikováno v:
AIP Advances, Vol 11, Iss 7, Pp 075014-075014-5 (2021)
Femtosecond laser sulfur hyperdoped silicon (fs-hSi) is capable of absorbing photons in the infrared spectral range while simultaneously exhibiting negligible reflection. However, laser processing creates detrimental amorphous and polycrystalline sil
Externí odkaz:
https://doaj.org/article/aba3e15e6957415ba1fc75d851c82a9b
Autor:
Christian Bischoff, Friedemann Völklein, Jana Schmitt, Ulrich Rädel, Udo Umhofer, Erwin Jäger, Andrés Fabián Lasagni
Publikováno v:
Materials, Vol 12, Iss 14, p 2254 (2019)
Many laser material processing applications require an optimized beam profile, e.g., ring shape or Top-Hat profiles with homogeneous intensity distribution. In this study, we show a beam shaping concept leading to a phase shifting element with binary
Externí odkaz:
https://doaj.org/article/f89f412e10114e79be2459140897ebc0
Autor:
Friedemann Völklein, Alexander Kaya, Jens Müller, Pintu Das, Heiko Reith, Fabrizio Porrati, Roland Sachser, Markus Baranowski, Christina Grimm, Christian H. Schwalb, Michael Huth
Publikováno v:
Sensors, Vol 10, Iss 11, Pp 9847-9856 (2010)
This paper introduces a new methodology for the fabrication of strain-sensor elements for MEMS and NEMS applications based on the tunneling effect in nano-granular metals. The strain-sensor elements are prepared by the maskless lithography technique
Externí odkaz:
https://doaj.org/article/5b70093655ce43879f07dcc251c56ae7
Autor:
Michael Przybylski, Pascal Wiegand, Michael O. Glocker, Loredana-Mirela Lupu, Günes Barka, Wolfgang Kleinekofort, Delia Mihoc, Frederik Barka, Friedemann Völklein, Oliver Müller
Publikováno v:
Journal of the American Society for Mass Spectrometry. 32:106-113
Myoglobin (MG) is a biomarker for heart muscle injury, making it a potential target protein for early detection of myocardial infarction. Elevated myoglobin levels alone have low specificity for acute myocardial infarction (AMI) but in combination wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6dddcef652abaeae850e9cf7e40eeb54
https://doi.org/10.1021/jasms.0c00234
https://doi.org/10.1021/jasms.0c00234
Autor:
Sascha Knauer, Wolfgang Kleinekofort, Loredana-Mirela Lupu, Michael Przybylski, Frederik Barka, Pascal Wiegand, Günes Barka, Julia B. Hennermann, Daria Holdschick, Stephan Rawer, Ebrahim Malek, Stefan Maeser, Andreas Hahn, Delia Mihoc, Friedemann Völklein, Christina Uth
Publikováno v:
International Journal of Molecular Sciences, Vol 22, Iss 12832, p 12832 (2021)
International Journal of Molecular Sciences
International Journal of Molecular Sciences
Analytical methods for molecular characterization of diagnostic or therapeutic targets have recently gained high interest. This review summarizes the combination of mass spectrometry and surface plasmon resonance (SPR) biosensor analysis for identifi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b148d86900d23425f2fc4531ef0481c
https://www.mdpi.com/1422-0067/22/23/12832
https://www.mdpi.com/1422-0067/22/23/12832
Autor:
Heiko Reith, Maria Eugenia Toimil-Molares, Christina Trautmann, Friedemann Völklein, Michael Florian Peter Wagner
Publikováno v:
physica status solidi (a). 213:610-619
Three-dimensional (3D) assemblies of nanostructures are gaining more and more attention during the recent years as promising systems to increase the integration density in microelectronic devices. Here we present the fabrication of large areas of 3D
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ca3b1b692a310305feb0296adff4dfd
https://doi.org/10.1002/pssa.201532616
https://doi.org/10.1002/pssa.201532616
Publikováno v:
The Review of scientific instruments. 89(1)
The characterization of nanostructured samples with at least one restricted dimension like thin films or nanowires is challenging, but important to understand their structure and transport mechanism, and to improve current industrial products and pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f8a68334e51ff732f7f4744ddeaecbb4
https://pubmed.ncbi.nlm.nih.gov/29390699
https://pubmed.ncbi.nlm.nih.gov/29390699
Autor:
Anton Romanenko, Christina Trautmann, Marco Cassinelli, Maria Eugenia Toimil-Molares, Wilfried Sigle, Heiko Reith, Friedemann Völklein
Publikováno v:
physica status solidi (a). 213:603-609
To investigate the physical properties of Bi nanowires and to explore their possible implementation in thermoelectric devices, it is essential to understand their chemical and thermal stability in air both at room and moderate temperatures. In this w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a650aac48bd8ad449174f1941d4e11d
https://doi.org/10.1002/pssa.201532613
https://doi.org/10.1002/pssa.201532613
Edited by the initiators of a priority research program funded by the German Science Foundation and written by an international team of key players, this is the first book to provide an overview of nanostructured thermoelectric materials -- putting t
