Search Results - "Ursachi, Veaceslav"

In Memoriam of academician Vitalie Postolati

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A comparative study of plasmonic effects in electrochemically nanostructured cuins2 and cugas2 crystals by Ursachi, Veaceslav

“…We investigate the differences in electrochemical anostructuring of CuInS2 and CuGaS2 crystals. It is shown that thermal reatment of CuInS2 crystals either in…”
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A comparative study of Cu-related Pasmonic effects in electrochemically nanostructured CuInSe2 and CuGaSe2 crystals by Ursachi, Veaceslav

“…We study the differences in electrochemical nanostructuring of CuInSe2 and CuGaSe2 crystals. To make the crystals suitable for electrochemical nanostructuring,…”
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Electrochemical nanostructuring of CuInSe2 bulk crystals by Ursachi, Veaceslav

“…We show that chalcopyrite CuInSe2 crystals can be nanostructured by electrochemical treatment in an aqueous HCl solution. To make the crystals suitable for…”
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Optical constants of ZnSxSe1–x thin films calculated from transmission spectra by Popa, Mihail, Tighineanu, Ion, Ursachi, Veaceslav

“…We report the results of calculations of some optical parameters of ZnSxSe1–x thin films based on measured transmission spectra by using the Swanepoel’s…”
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A comparative study of photoconductivity decay in ZnO-based MSM structures and nanowires by Rusu, Emil, Postolache, Vitalie, Curmei, Nicolai, Ursachi, Veaceslav

“…Comparative analysis of transient photoconductivity in ZnO-based MSM structures and nanowires is performed in this paper. The measurements are carried out at…”
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Calculation of optical functions of exciton and electron transitions by means of kramers-kronig relations in CuAlS2 crystals by Stamov, Ivan, Sîrbu, Nicolae, Korzun, B, Ursachi, Veaceslav, Dorogan, Andrei, Maşnic, Aliona

“…Excitonic reflection spectra of CuAlS2 crystals were measured at a temperature of 10 K for E||c and Ec polarizations. The shapes of the lines of ground states…”
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Superposition of free and bound exciton emission spectra in ZnP2-D48 by Stamov, Ivan, Sîrbu, Nicolae, Ursachi, Veaceslav, Ivanenco, Iurii

“…Bound exciton lines are found in the luminescence spectra of Mn, Sn, Cd, and Sb doped tetragonal zinc diphosphide crystals at the temperature of 10 K. Zero…”
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Forthputting the concept of Mxwell’s ether for the determination of dielectric and magnetic functions of a photonic crystal from the frequency spectrum by Sergentu, Vladimir, Ursachi, Veaceslav, Damaschin, Victor, Tighineanu, Ion

“…A new method is proposed for the determination of the effective dielectric permittivity and magnetic permeability of a photonic crystal in a narrow frequency…”
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Exciton spectra and energy band structure of CuAlSe2 crystals by Sîrbu, Nicolae, Dorogan, Andrei, Maşnic, Alisa, Ursachi, Veaceslav

“…The main exciton parameters and the refined values of the energy intervals V1(Г7) - C1(Г6), V2(Г6) - C1(Г6) and V3(Г7) - C1(Г6) in CuAlSe2 crystals are…”
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Numerical optimization of metallized titania nanotube morphologies for negative index material flat lens applications by Sergentu, Vladimir, Zalamai, Victor, Enachi, Mihail, Ursachi, Veaceslav, Tighineanu, Ion

“…We perform numerical calculation in order to optimize the morphology of metallized ti- tania nanotubes from the point of view of flat lens application based on…”
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Interband optical transitions in the region of exciton resonances in In0.3Ga0.7As/GaAs quantum wells by Sîrbu, Nicolae, Dorogan, Andrei, Dorogan, Valerian, Vieru, Tatiana, Ursachi, Veaceslav, Zalamai, Victor

“…Reflectance spectra of quantum wells (QWs) with 8-nm-thick In0.3Ga0.7As layers with a 9-nm-thick GaAs barrier layer up and a 100-nm-thick barrier layer down…”
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Characterization of structure and luminescence of titania nanotubes by Enachi, Mihail, Trofim, Viorel, Tighineanu, Ion, Ursachi, Veaceslav, Coseac, Valeriu

“…The morphology, structural, and optical properties of porous titania layers prepared by electrochemical oxidation of Ti foils are studied as a function of…”
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Structure and luminescence properties of porous alumina templates doped with rare earth elements and transition metals by Enachi, Mihail, Trofim, Viorel, Tighineanu, Ion, Coseac, Valeriu, Ursachi, Veaceslav

“…We propose to develop phosphor materials on the basis of porous alumina templates doped with rare earth elements and transition metals. This issue is…”
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Nanostructured ZnO produced from ZnTe for random laser applications by Zalamai, Victor, Burlacu, Alexandru, Postolache, Vitalie, Rusu, Emil, Ursachi, Veaceslav, Tighineanu, Ion

“…We propose to produce ZnO nanostructured material by thermal treatment in oxygen ambient of bulk ZnTe crystals and nanowires obtained by electrochemical…”
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Photoluminescence in CdGa2S4 single crystals by Jitari, Vasile, Ursachi, Veaceslav, Şemeacova, Tatiana, Aramă, Efim

“…Long wavelength photoluminescence in CdGa S single crystals was studied at 10 K. Novel bands were found out associated with donor-acceptor recombination…”
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Preparation and photoluminescence of ZnGa2O4:Co by Jitari, Vasile, Ursachi, Veaceslav, Volodina, Galina, Şemeacova, Tatiana, Muntean, Ştefan

“…Ceramic samples of ZnGa2O4 doped with Co have been prepared. Their photolumines- cence spectra measured at laser excitation (λ= 351 nm) and various…”
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Photoluminescence in ZnGa2O4 by Zhitar, V, Ursachi, Veaceslav, Aramă, Efim, Şemeacova, Tatiana

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Semiconductor-oxide nanocomposites based on porous semiconductors by Hmelevschi, Leonid, Tighineanu, Ion, Ursachi, Veaceslav, Dolgaleva, Ksenia, Boyd, Robert W.

“…Rare-earth containing oxide nanocomposites are prepared of porous GaP and GaAs templates in a controlled fashion. The initial porous GaP and GaAs networks are…”
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Intense luminescence from porous ZnSe layers by Monaico, Eduard, Tighineanu, Ion, Ursachi, Veaceslav, Boyd, Robert W., Ubrieta, A, Fernandez, P, Piqueras, Javier

“…We report on the possibility to prepare ZnSe porous layers with different degrees of porosity by means of electrochemical methods. The prepared porous…”
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