T
Tomas Roch
Researcher at Comenius University in Bratislava
Publications - 170
Citations - 2316
Tomas Roch is an academic researcher from Comenius University in Bratislava. The author has contributed to research in topics: Thin film & Terahertz radiation. The author has an hindex of 26, co-authored 151 publications receiving 1937 citations. Previous affiliations of Tomas Roch include Vienna University of Technology & Johannes Kepler University of Linz.
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PbTe based superlattice structures with high thermoelectric efficiency
TL;DR: In this paper, an enhanced thermoelectric figure of merit ZT =σS2T/λ (where σ is electrical conductivity, S is thermopower, T is absolute temperature, and λ is thermal conductivity).
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Flexible highly sensitive hydrogen gas sensor based on a TiO2 thin film on polyimide foil
O. Krško,Tomas Plecenik,Tomas Roch,Branislav Grančič,Leonid Satrapinskyy,M. Truchlý,P. Ďurina,M. Gregor,Peter Kúš,Andrej Plecenik +9 more
TL;DR: In this article, a flexible semiconductor gas sensor of hydrogen was presented on 38μm thick Kapton ® polyimide foil, based on a TiO 2 thin film with platinum interdigital electrodes on top.
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Influence of doping on the performance of terahertz quantum-cascade lasers
Alexander Benz,Gernot Fasching,Aaron Maxwell Andrews,M. Martl,Karl Unterrainer,Tomas Roch,W. Schrenk,S. Golka,Gottfried Strasser +8 more
TL;DR: In this article, the effects of the doping concentration on the performance of a set of terahertz quantum-cascade lasers emitting around 2.75THz were analyzed and a linear dependency of the threshold current density on the doping was observed.
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Effect of overgrowth on shape, composition, and strain of SiGe islands on Si(001)
TL;DR: In this paper, the shape and strain distribution of a single SiGe dome-shaped island capped by a 160-nm Si layer is resolved using x-ray scattering. But the results are limited to a single layer of the island.
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Photoelectrocatalytic hydrogen production by water splitting using BiVO4 photoanodes
Olivier Monfort,Lucian-Cristian Pop,Stavroula Sfaelou,Tomas Plecenik,Tomas Roch,Vassilios Dracopoulos,Elias Stathatos,Gustav Plesch,Panagiotis Lianos +8 more
TL;DR: In this paper, Nanocrystalline bismuth vanadate was deposited on FTO electrodes in order to construct visible light responsive photoanodes, which were employed for photoelectrochemical hydrogen production by water splitting.