V. Řeháček

ORCID: 0000-0003-0618-4747
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About
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Research Areas
  • Gas Sensing Nanomaterials and Sensors
  • Analytical Chemistry and Sensors
  • Advanced Chemical Sensor Technologies
  • Electrochemical Analysis and Applications
  • Transition Metal Oxide Nanomaterials
  • ZnO doping and properties
  • Electrochemical sensors and biosensors
  • Semiconductor materials and devices
  • GaN-based semiconductor devices and materials
  • Conducting polymers and applications
  • Graphene research and applications
  • Copper-based nanomaterials and applications
  • Plasma Diagnostics and Applications
  • Advanced Sensor and Energy Harvesting Materials
  • Diamond and Carbon-based Materials Research
  • Metal and Thin Film Mechanics
  • Microfluidic and Capillary Electrophoresis Applications
  • Lipid Membrane Structure and Behavior
  • Nanowire Synthesis and Applications
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Silicon and Solar Cell Technologies
  • Silicon Nanostructures and Photoluminescence
  • Ga2O3 and related materials
  • Mechanical and Optical Resonators
  • Advanced MEMS and NEMS Technologies

Slovak University of Technology in Bratislava
2014-2024

Institute of Informatics of the Slovak Academy of Sciences
2011-2014

Slovak Academy of Sciences
2010-2014

Institute of Electrical Engineering of the Slovak Academy of Sciences
2010-2014

Danubia NanoTech (Slovakia)
2013

Johannes Kepler University of Linz
2010-2011

Technische Universität Ilmenau
2010-2011

Comenius University Bratislava
1985-2010

Kirchhoff (Germany)
2010

By a simple femtosecond laser process, we fabricate metal-oxide/gold composite films for electrical and optical gas sensors. We designed dripple wavelength AWG-spectrometer, matched to the plasma absorption region of films. H2/CO absorptions fit well with AWG design multi detection sensor arrays.

10.1063/5.0188211 article EN AIP conference proceedings 2024-01-01

Abstract This study presents different approaches to increase the sensing area of NiO based semiconducting metal oxide gas sensors. Micro- and nanopatterned laser induced periodic surface structures (LIPSS) are generated on silicon Si/SiO 2 substrates. The morphologies fabricated samples examined by FE SEM. We select with an intermediate Si 3 N 4 layer due its superior isolation quality over thermal for evaluating hydrogen acetone sensitivity a test sensor.

10.2478/jee-2024-0004 article EN Journal of Electrical Engineering 2024-02-01

Abstract Voltammetric sensors based on bismuth film electrodes are an attractive alternative to other for application in electroanalysis of heavy metals. Bismuth can be formed by a similar method the same substrates as mercury. These systems were used most frequently simultaneous determination metals such Pb, Cd and Zn anodic stripping voltammetry. Our voltammetric sensor was fabricated alumina substrate. A photoresist prepared pyrolysis positive S‐1813 SP15 substrate electrode support...

10.1002/elan.201400020 article EN Electroanalysis 2014-04-24

The lateral electrical conductivity of gold layers with thickness in the nanometre range was found to decrease due adsorption mercury, water, iodine and sulphuric compounds onto surface. A self-assembled monolayer hexadecanethiol, deposited on surface, blocked effects water volatile layers, but does not block mercury. results indicate a selective permeability hexadecanethiol monolayers for mercury vapour, thus providing method development ultrathin filters chemical sensors.

10.1088/0957-4484/13/2/309 article EN Nanotechnology 2002-03-01
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