Search Results - "FRUMAR, M"

Amorphous and crystallized Ge–Sb–Te thin films deposited by pulsed laser: Local structure using Raman scattering spectroscopy by Němec, P., Nazabal, V., Moreac, A., Gutwirth, J., Beneš, L., Frumar, M.

“…UV pulsed laser deposition was employed for the fabrication of amorphous (GeTe)x(Sb2Te3)1−x, (x = 1, 0.66, 0.5, 0.33, and 0) thin films. The local structure of…”
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Optically and thermally induced changes of structure, linear and non-linear optical properties of chalcogenides thin films by Frumar, M., Jedelský, J., Frumarová, B., Wágner, T., Hrdlička, M.

“…The spectral dependence of third-order non-linear susceptibilities, c(3), of amorphous As-S thin films was evaluated from changes of index of refraction using…”
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Thin chalcogenide films prepared by pulsed laser deposition – new amorphous materials applicable in optoelectronics and chemical sensors by Frumar, M., Frumarova, B., Nemec, P., Wagner, T., Jedelsky, J., Hrdlicka, M.

“…Principles, advantages, applications and drawbacks of pulsed laser deposition (PLD) technique for thin films preparation are reviewed. The PLD method is…”
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Photoinduced phenomena in As4Se3 amorphous thin films prepared by pulsed laser deposition by NEMEC, P, FRUMAR, M

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Irreversible photoinduced changes in As48S52 amorphous thin films prepared by pulsed laser deposition by NEMEC, P, FRUMAR, M

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Penn gap rule in phase-change memory materials: No clear evidence for resonance bonds by Shimakawa, K., Střižik, L., Wagner, T., Frumar, M.

“…Although a proposal of resonance bonds in crystalline phase-change materials based on the GeSbTe system has been provided, we do not find any clear evidence in…”
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Effect of silver doping on the structure and phase separation of sulfur-rich As–S glasses: Raman and SEM studies by Kyriazis, F., Chrissanthopoulos, A., Dracopoulos, V., Krbal, M., Wagner, T., Frumar, M., Yannopoulos, S.N.

“…We report on the structural details and microphase separation of the bulk glasses Ag x · ( As 33 S 67 ) 100 - x for 0 ⩽ x ⩽ 25 . Glass–glass phase separation…”
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Optical waveguide based on amorphous Er3+-doped Ga-Ge-Sb-S(Se) pulsed laser deposited thin films by NAZABAL, V, NEMEC, P, ADAM, J.-L, JURDYC, A. M, ZHANG, S, CHARPENTIER, F, LHERMITE, H, CHARRIER, J, GUIN, J. P, MOREAC, A, FRUMAR, M

“…Amorphous chalcogenide films play a motivating role in the development of integrated planar optical circuits due to their potential functionality in near…”
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Physico-chemical properties of Sb-rich (Sb, In)–Te thin films by Hromádko, L., Přikryl, J., Střižík, L., Košt’ál, P., Beneš, L., Frumar, M.

“…•The difference of electrical sheet resistance between amorphous and crystalline state is more than 3 orders.•The crystallization temperature Tc of the…”
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Compositional dependence of spectroscopic parameters of Dy ions in Ge-Ga-Se glasses by Nemec, P, Frumar, M

“…Dy3+ doped chalcogenide glasses from Ge-Ga-Se system were prepared and spectroscopic parameters of Dy3+ ions in these glasses were studied on the basis of…”
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Physico-chemical properties of the thin films of the SbxSe100−x system (x=90, 85, 80) by Hromádko, L., Přikryl, J., Frumar, M., Střižík, L., Košťál, P., Beneš, L., Wágner, T.

“…The bulk samples of SbxSe100−x system (x=90, 85, 80) and their amorphous thin films were prepared by flash evaporation method. The films possess good thermal…”
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Green, red and near-infrared photon up-conversion in Ga–Ge–Sb–S:Er3+ amorphous chalcogenides by Strizik, L., Zhang, J., Wagner, T., Oswald, J., Kohoutek, T., Walsh, B.M., Prikryl, J., Svoboda, R., Liu, C., Frumarova, B., Frumar, M., Pavlista, M., Park, W.J., Heo, J.

“…We report on compositional tuning in Er3+ ions doped Ga–Ge–Sb–S glassy system allowing for effective 2H11/2→4I15/2 (530nm), 4S3/2→4I15/2 (550nm), 4F9/2→4I15/2…”
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Preparation and physical properties of luminescent 80GeSe2·(20−x)Sb2Se3·xSb2Tey:Pr2Se3 glasses; x=0, 1, 3, 10; y=2, 3, 4 by Frumarova, B., Frumar, M., Oswald, J., Kincl, M., Parchanski, V.

“…Homogeneous glasses of the system 80GeSe2·(20−x)Sb2Se3·xSb2Tey:0.03Pr2Se3 glasses; x=0, 1, 3, 10; y=2, 3, 4 were prepared. The glasses with x=0–3 are very…”
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Optical and structural properties of Ge–Se bulk glasses and Ag–Ge–Se thin films by Orava, J., Kohoutek, T., Wagner, T., Cerna, Z., Vlcek, Mil, Benes, L., Frumarova, B., Frumar, M.

“…The optical and structural properties of Ge 20Se 80, Ge 25Se 75 and Ge 30Se 70 bulk glasses and Ag x (Ge 0.20Se 0.80) 100− x thin films, where x = 0, 6, 11,…”
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Thermal and optical properties of AgSbS2 thin films prepared by pulsed laser deposition (PLD) by Gutwirth, J., Wágner, T., Němec, P., Kasap, S.O., Frumar, M.

“…Thin amorphous AgSbS2 films were deposited as the potential candidate for new phase-change memory material. Thin films were prepared by pulsed laser deposition…”
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Structure and properties of the pure and Pr3+-doped Ge25Ga5Se70 and Ge30Ga5Se65 glasses by NEMEC, P, FRUMAROVA, B, FRUMAR, M

“…The Ge25Ga5Se70 and Ge30Ga5Se65 pure and Pr3+-doped glasses were prepared by direct synthesis from elements and PrCl3. Up to 1 mol% PrCl3 can be introduced in…”
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Conductivity and permittivity study on silver and silver halide doped GeS2–Ga2S3 glassy system by Stehlik, S., Zima, V., Wagner, T., Ren, J., Frumar, M.

“…Electrical properties of (100 - 2x)GeS2-xGa2S3-xAgI (x = 15, 20, 25, 30 at.%), 60GeS2-20Ga2S3-20AgX (X = Cl, Br and I) and (60GeS2-20Ga2S3-20AgI)100 - x-Agx (x…”
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Selective wet-etching and characterization of chalcogenide thin films in inorganic alkaline solutions by Orava, J., Wagner, T., Krbal, M., Kohoutek, T., Vlcek, Mil, Frumar, M.

“…This paper deals with sensitivity of chalcogenide based photoresists in inorganic alkaline solutions. The thin films of As33S67, As33S50Se17, As33S33.5Se33.5,…”
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Ion conductive chalcohalide glasses in LiI-Ga2S3-GeS2 system by KOLAR, J, WAGNER, T, ZIMA, V, STEHLIK, S, FRUMAROVA, B, BENES, L, VLCEK, M, FRUMAR, M, KASAP, S. O

“…The electric properties of LiI containing chalcohalide glasses in the system Ga2S3-GeS2 were studied by means of impedance spectroscopy and potentiostatic…”
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Spin-coated As33S67−xSex thin films: the effect of annealing on structure and optical properties by Kohoutek, T., Wagner, T., Vlcek, Mir, Vlcek, Mil, Frumar, M.

“…The spin-coating method was used for the preparation of amorphous chalcogenide As33S67−xSex films, where x=0, 17, 33.5, 50 and 67 at.%. The films were…”
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