Zobrazeno 1 - 10
of 14
pro vyhledávání: '"V. M. Arakelyan"'
Autor:
Vladimir M. Aroutiounian, G. E. Shahnazaryan, A. G. Sayunts, V. M. Arakelyan, M. S. Aleksanyan, Hayk A. Zakaryan
Publikováno v:
Journal of Contemporary Physics (Armenian Academy of Sciences). 55:205-212
The sensitivity of gas sensors made of doped SnO2:Co metal oxide for the detection of hydrogen peroxide vapors in the environment was studied using current-voltage, frequency-capacitance, and transient characteristics. Their measurements were carried
Autor:
A. A. Zakaryan, G. E. Shakhnazaryan, A. G. Sayunts, M. S. Aleksanyan, Vladimir M. Aroutiounian, V. M. Arakelyan
Publikováno v:
Journal of Contemporary Physics (Armenian Academy of Sciences). 55:151-156
A ceramic target based on cobalt doped SnO2 metal oxide was synthesized by the solid-phase reaction method. The target was used in the process of high-frequency magnetron sputtering. A thin SnO2:Co film was deposited, which is sensitive to hydrogen p
Autor:
V. M. Aroutiounian, Oleg I. Gromov, A. I. Kokorin, V. M. Arakelyan, A. A. Sukhanov, Violeta K. Voronkova
Publikováno v:
Applied Magnetic Resonance. 47:479-485
Samples of titanium dioxide, TiO2, doped with vanadium ions (0.1 ≤ [V n+]0 ≤ 5.0 at. %) at high temperature, were prepared in a polycrystalline state and investigated using X-, Q-, and W-band electron paramagnetic resonance, EPR, spectroscopy. Su
Autor:
Petr Kacer, V. M. Aroutiounian, Pavel Picha, Berndt Joost, Jiri Kovarik, G. E. Shahnazaryan, Jakub Pekarek, A. G. Sayunts, M. S. Aleksanyan, V. M. Arakelyan
Publikováno v:
Proceedings Sensor 2017.
Autor:
M. S. Aleksanyan, R. V. Hovhannisyan, V. M. Arakelyan, H. D. Khondkaryan, Vladimir M. Aroutiounian, B. O. Semerjyan, Ferdinand Gasparyan
Publikováno v:
Journal of Contemporary Physics (Armenian Academy of Sciences). 49:151-157
Thin film gas sensors based on nanocomposite In2O3·Ga2O3·SnO2 (70:20:10) have been manufactured by the high-frequency magnetron sputtering method. The technological cycle of sensor fabrication processes is described. Sensitivity of the prepared sen
Autor:
E. A. Khachaturyan, V. M. Arakelyan, L. Forró, Vladimir M. Aroutiounian, G. E. Shahnazaryan, Arnaud Magrez, Klara Hernadi, M. S. Aleksanyan, Zoltán Németh
Publikováno v:
Sensors and Actuators B: Chemical. 173:890-896
Nanocomposite SnO2/multiwall-carbon-nanotubes were prepared by the sol-gel method. The morphology of prepared nanocomposite powder was investigated by scanning electron microscopy. Energy-dispersive X-ray and X-ray diffraction analyses were carried o
Publikováno v:
Journal of Contemporary Physics (Armenian Academy of Sciences). 46:86-92
We have fabricated a LPG and butane sensor whose sensitive element is a nanosize In2O3:Ga2O3 (96:4 weight %) film covered with a thin palladium catalytic layer. Technology of deposition of these films on a glassceramic substrate by the method of rf m
Autor:
M. S. Aleksanyan, V. M. Arakelyan, G. E. Shahnazaryan, A. Z. Adamyan, Vladimir M. Aroutiounian
Publikováno v:
Journal of Contemporary Physics (Armenian Academy of Sciences). 45:291-296
Nanosize films of In2O3:Ga2O3 (96:4 weight %) have been deposited on a glassceramic substrate by the method of rf magnetron sputtering. The surfaces of fabricated films were studied with use of a scanning electron microscope; sizes of grains were det
Autor:
K. Martirosyan, Vardan Galstyan, V. M. Arakelyan, Patrick Soukiassian, Vladimir M. Aroutiounian
Publikováno v:
IEEE Sensors Journal. 9:9-12
Hydrogen sensor working at room and 40degC temperatures made of porous silicon covered by the TiO2-x or ZnO(Al) thin film was realized. Porous silicon layer was formed by electrochemical anodization on a p- and n-type Si surface. Thereafter, n-type T
Publikováno v:
Russian Chemical Bulletin. 52:93-97
The structure of coordination sites (V4+ ions) and their spatial distribution in the polycrystalline titanium dioxide (rutile) lattice were studied by ESR. It was found that at low degrees of doping, at [V4+] 0.5 at.% a new microphase with the mixed