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V. Breternitz

Technische Universität Ilmenau

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Ch. Knedlik

Technische Universität Ilmenau

I. Νovotný

Czech Academy of Sciences, Institute of Molecular Genetics

Lothar Spieß

Technische Universität Ilmenau

V. Tvarožek

Slovak University of Technology in Bratislava

V. Řeháček

Slovak University of Technology in Bratislava

Christian Knedlik

Technische Universität Ilmenau

R. Ivanic

Slovak University of Technology in Bratislava

A. Jakubec

Slovak University of Technology in Bratislava

K. Shtereva

Angel Kanchev University of Ruse

S. Flickyngerová

Slovak University of Technology in Bratislava

Cooperative Institutions

Technische Universität Ilmenau

Slovak University of Technology in Bratislava

Slovak Academy of Sciences

International Laser Center

University of West Bohemia

Kirchhoff (Germany)

Technical University of Darmstadt

Institute of Electrical Engineering of the Slovak Academy of Sciences

Czech Technical University in Prague

Gesellschaft für Materialforschung und Prüfungsanstalt für das Bauwesen (Germany)

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Viscosity effect on GaInSn studied by XPS

Surface and Interface Analysis (2004)

F. Scharmann Gennady Cherkashinin V. Breternitz Ch. Knedlik G. Hartung

Abstract Viscosity measurements of GaInSn eutectic alloys were performed in a homebuilt device for low (9%) and high (95%) relative humidity for shorter (450 min) and longer (1800 min) time periods. At constant exposure time a characteristic increase of viscosity is observed with increasing humidity. For high humidity, high viscosity is obtained after a short time. Assuming that the measured viscosity change is strongly related to the absorption of oxygen, XPS was applied to the chemical and quantitative analysis of differently prepared samples. In all cases, Ga is predominantly oxidized at the surface whereas Ga atoms in the metallic state are located deeper inside. Besides Ga 2 O 3 (the most stable oxide phase), the less stable Ga 2 O is detected. Indium and tin are almost stable in their metallic state. With increasing humidity the thickness of the oxide film increases in our case from about 19 Å to 25 Å, assuming a layer‐by‐layer model. The presented results confirm our assumption of the increase in viscosity of the GaInSn system as a consequence of the preferential oxidation of gallium in the near‐surface region. Copyright © 2004 John Wiley & Sons, Ltd.

Indium tin oxide

10.1002/sia.1817

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Thin film voltammetric microsensor for heavy metal analysis

V. Tvarožek V. Řeháček K. Shtereva I. Νovotný V. Breternitz

Thin film palladium (Pd) and indium tin oxide (ITO) microelectrodes modify by mercury (Hg) were developed for heavy metal analysis by anodic stripping voltammetry. In case of Pb/sup 2+/ determination the sensitivity of ITO-Hg array of disc electrodes was higher (130 nA//spl mu/M) in comparison with Pd-Hg interdigitated array of electrodes (60 nA//spl mu/M).

Indium tin oxide

Mercury

Anodic Stripping Voltammetry

10.1109/icmel.2004.1314590

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Vertically arranged microelectrode array for electrochemical sensing

V. Rebacek I. Νovotný R. Ivanic V. Breternitz Lothar Spieß

We have developed a thin film cell consisting of a vertically arranged interdigital array (IDA) of electrodes with a continuous Pt-basis and an Y/sub 2/O/sub 3/ insulation layer in the middle separating the upper Pt IDA electrodes. We have optimized the technology of preparation of Y/sub 2/O/sub 3/ thin films with suitable electrical and mechanical properties. The electrochemical cell has been tested by cyclic voltammetry using the redox couple [Fe(CN)/sub 6/]/sup 3-/4-/ in an electrolyte and the redox recycling phenomenon was demonstrated under these conditions.

Electrochemical cell

Multielectrode array

Supporting electrolyte

10.1109/asdam.2000.889535

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Simulation of electromigration behaviour in Al metallization of integrated circuits

Microelectronics Reliability (1992)

Matthias Scherge V. Breternitz Ch. Knedlik

Electromigration

10.1016/0026-2714(92)90083-w

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Zinc oxide - Unique material for micro- /nanotechnology

CD-ROM-Ausg.:#R#<br/>Information technology and electrical engineering - devices and systems, materials and technologies for the future : 51. IWK, Internationales Wissenschaftliches Kolloquium ; proceedings ; 11 - 15 September 2006 / Faculty of Electrical and Information Technology, Technische Universität Ilmenau. - Ilmenau : Verl. ISLE, 2006. - ISBN 3-938843-16-0 (2009)

S. Flickyngerová I. Νovotný V. Tvarožek M. Nigrovicova A. Šatka

Nanotoxicology

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Characterization of Indium‐Tin‐Oxide Thin Film Microelectrodes for Biomedical Use

Materialwissenschaft und Werkstofftechnik (2003)

A. Jakubec V. Tvarožek I. Νovotný V. Řeháček V. Breternitz

Abstract Selected properties of indium‐tin‐oxide (ITO) films prepared by r.f. diode sputtering have been investigated in consideration of surface morphology, optical properties, crystal structure and phase formation, electrical resistivity and chemical resistance. The ITO films showed low electrical resistivity (6·10 ‐5 Ωm), high optical transmittance (> 80 %) and suitable chemical resistance against selected chemicals during 1 hour.

Indium tin oxide

Characterization

10.1002/mawe.200390132

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Sputtered yttrium oxide thin films appropriate for electrochemical sensors

R. Ivanic V. Řeháček I. Νovotný V. Breternitz Lothar Spieß

10.1016/s0042-207x(01)00117-8

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Preparation of nanostructured thin-film interfaces applicable in biosensors

S. Flickyngerová Renáta Ovádeková I. Νovotný V. Tvarožek Ján Labuda

Differential pulse voltammetry

10.1016/j.vacuum.2007.07.030

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Thin films for electrochemical sensoric interfaces

A. Jakubec V. Řeháček I. Νovotný R. Ivanic V. Tvarožek

Planar microelectrochemical chips with thin-film electrodes (Au, Pt, Ag/AgCl) of different shapes and arrangements (compact, interdigitated array) on Si or glass substrates have been developed and fabricated Analyses of thin film roughness and surface morphology, by AFM and cyclic voltammetry have been performed. Resulting from this we found an optimal cleaning procedure of microelectrodes. The control and analysis of biosensing interfaces play a significant role in the design of biosensors and in optimization of their properties.

Multielectrode array

10.1109/asdam.2002.1088533

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Anisotropy of diffusion in nematic alkyloxybenzoic acids

Physics Letters A (1975)

V. Breternitz H. Kresse

10.1016/0375-9601(75)90843-9

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Citations (9)