S
Siegmar Roth
Researcher at Max Planck Society
Publications - 209
Citations - 9968
Siegmar Roth is an academic researcher from Max Planck Society. The author has contributed to research in topics: Carbon nanotube & Raman spectroscopy. The author has an hindex of 45, co-authored 209 publications receiving 9270 citations. Previous affiliations of Siegmar Roth include Korea University.
Papers
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Journal ArticleDOI
The degree and kind of agglomeration affect carbon nanotube cytotoxicity.
Peter Wick,Pius Manser,Ludwig K. Limbach,Ursula Dettlaff-Weglikowska,Frank Krumeich,Siegmar Roth,Wendelin J. Stark,Arie Bruinink +7 more
TL;DR: While suspended CNT-bundles were less cytotoxic than asbestos, rope-like agglomerates induced more pronounced cytot toxic effects than asbestos fibres at the same concentrations, which underlines the need for thorough materials characterization prior to toxicological studies and corroborates the role of agglomers in the cytotoxicity effect of nanomaterials.
Journal ArticleDOI
Hydrogen adsorption in different carbon nanostructures
TL;DR: In this paper, a linear relation between hydrogen uptake and specific surface area (SSA) was obtained for all samples independent of the nature of the carbon material, and the best material with a SSA of 2560m 2 /g showed a storage capacity of 4.5% at 77 K.
Book ChapterDOI
Solitons in polyacetylene
TL;DR: In this paper, a review of the chemical and physical properties of real polyacetylene is given and experimental results on electrical conductivity, magnetic behaviour, optical spectroscopy and photoconductivity are discussed in the context of soliton-like excitations.
Journal ArticleDOI
Accurate measurement of electron beam induced displacement cross sections for single-layer graphene.
Jannik C. Meyer,Jannik C. Meyer,Franz Eder,Simon Kurasch,Viera Skakalova,Viera Skakalova,Jani Kotakoski,Jani Kotakoski,Hye-Jin Park,Siegmar Roth,Siegmar Roth,Andrey Chuvilin,Andrey Chuvilin,Soeren Eyhusen,Gerd Benner,Arkady V. Krasheninnikov,Arkady V. Krasheninnikov,Ute Kaiser +17 more
TL;DR: An accurate measurement and a quantitative analysis of electron-beam-induced displacements of carbon atoms in single-layer graphene show that a static lattice approximation is not sufficient to describe knock-on damage in this material, while a very good agreement between calculated and experimental cross sections is obtained.
Journal ArticleDOI
Growth and properties of few-layer graphene prepared by chemical vapor deposition
TL;DR: In this article, the electrical, mechanical and optical properties of few-layer graphene (FLG) synthesized by chemical vapor deposition (CVD) on a Ni-coated substrate were studied.