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Dr. Vladimir Aroutiounian
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Academic Career Length
22Years (2005-Present)
(Calculated once Scilit publication data is synced: current year − year of first publication + 1)
Representative Publications
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Journal Article
MAMikayel Aleksanyan
Mikayel AleksanyanASArtak Sayunts
Artak SayuntsGSGevorg Shahkhatuni
Gevorg ShahkhatuniZSZarine Simonyan
Zarine SimonyanGSGohar Shahnazaryan
Gohar ShahnazaryanVAVladimir Aroutiounian
Vladimir AroutiounianIn this paper, the ZnO target was synthesized by the solid-state reaction method and a nanostructured thin film was deposited by the RF (radio frequency) magnetron sputtering method on a Multi-Sensor-Platform. The obtained ZnO nanostructured film was investigated as the sensing material. Energy-Dispersive X-ray (EDX) analysis indicated the existence of La in the synthesized ZnO material. Scanning Electron Microscope (SEM) images of the film showed the grain sizes in the range of 20–40 nm. Sensor performance characteristics such as a dynamic response, response and recovery times, and ethanol detection range were investigated at 50–300 °C. A sensitivity was observed at extremely low concentrations of ethanol (0.7 ppm). The minimum response and recovery times of the sensor corresponding to 675 ppm ethanol vapor concentration at 250 °C were found to be 14 s and 61 s, respectively. The sensor showed a high response, good selectivity, fast response/recovery behavior, excellent repeatability toward ethanol vapor, and low sensitivity toward humidity. These characteristics enable the use of a ZnO based sensor for ethanol detecting applications.
16 April 2018 in Journal of Sensors and Sensor Systems
Journal Article
VAVladimir Aroutiounian
Vladimir AroutiounianVAValeri Arakelyan
Valeri Arakelyan
MAMikayel Aleksanyan
Mikayel Aleksanyan
GSGohar Shahnazaryan
Gohar Shahnazaryan
PKPetr Kacer
Petr Kacer
BJBerndt Joost
Berndt Joost
+3
Thin-film hydrogen peroxide vapor sensors made from Co-doped SnO2 and La-doped ZnO were manufactured using the high-frequency magnetron sputtering method. Thicknesses of deposited doped metal oxide films were measured and their morphology was investigated. The gas sensing characteristics of the prepared sensors were measured at different concentrations of hydrogen peroxide vapors and different operating temperatures of the sensor. It was found that both sensors made from doped metal oxides SnO2 and ZnO exhibit a sufficient response to 10 ppm of hydrogen peroxide vapors at the 200 and 220 °C operating temperature, respectively. It was established that the dependencies of the response on hydrogen peroxide vapor concentration have a linear character for prepared structures at the 150 °C operating temperature and can be used for determination of hydrogen peroxide vapor concentration.
1 October 2015 in Journal of Contemporary Physics (Armenian Academy of Sciences)
Journal Article
VAVladimir Aroutiounian
Vladimir Aroutiounian13 August 2008 in Thin Solid Films
Journal Article
Vardan GalstyanKMKh.S. Martirosyan
Kh.S. MartirosyanVAVladimir Aroutiounian
Vladimir AroutiounianAAA.H. Arakelyan
A.H. ArakelyanPSPatrick Soukiassian
Patrick Soukiassian11 January 2016 in Lithuanian Journal of Physics
Journal Article
VAVladimir Aroutiounian
Vladimir AroutiounianGas sensors made from carbon nanotubes without their doping and functionalization have serious shortcomings. Analysis of physics and techniques of decoration (functionalization) of carbon nanotubes using organic polymers, doping with impurities, metallic nanoparticle/nanoclusters is carried out. The development of metal oxide nanocomposite sensors decorated with carbon nanotubes is very promising for realization of detectors of different important gases with dramatically improved response, better time characteristics and smaller consumed power.
1 April 2021 in Journal of Contemporary Physics (Armenian Academy of Sciences)
Journal Article
VAVladimir Aroutiounian
Vladimir AroutiounianThe paper presents and discusses works carried out both at Yerevan State University and abroad on non-invasive metal oxide sensors (chemiresistors) for ace
About Me
Honorary Head of Department of Physics of Semiconductors and Microelectronics at Yerevan State University.
Academician of National Academy of Sciences of Armenia (1996 - up to now),
Academician of International Engineering Academy (1999 - up to now),
Honoured worker of science of Republic of Armenia (2011),
Governmental award-medal “Anania Shirakaci”, Prize 2007 of President of Armenia.
Current research interests: Physical properties of semiconductor materials and structures; Chemical sensors; Nanoelectronics and nanophysics; Photoelectrochemical production of hydrogen and (thermo) photoelectric conversion of solar energy (solar cells).
Editor-in-Chief of Izvestia of NAS Arm. Fizika /J. Contemporary Physics (NAS, Armenia / MAIK/Allerton Press, USA/Springer (Germany)) and Armenian Journal of Physics, Editor of “Nanomedicine, Nanotechnology, and Nanomaterials” Journal, Member of Sci. Council of Intl. Journal of Alternative Energetics and Ecology, Ed. Board of Renewable Energy (ACTA press, Canada), Nanoelectronics and Nanotechnology (Singapore), EnPress Publisher LLC and Editorial Board of PiscoMed Publishing Pte. Ltd (Singapore), Journal of Material Sci (France), Arm.Techn.Univ. and Journal “Armenian Army”. He was involved in past as the member of the Ed.Board of Intl. J. “Solar Cells” (Switzerland).