National Repository of Grey Literature 33 records found  previous4 - 13nextend  jump to record: Search took 0.00 seconds. 
Study of bio-compatible materials using FTIR spectroscopy
Zezulová, M. ; Jelínek, Miroslav
Infrared (IR) spectroscopy is used for the measurement of absorption spectra of analyzed material in IR wavelength region. We studied TiO2 layers prepared by PLD (Pulsed Laser Deposition) method. We measured IR spectra in region 600-100 cm-1 and 4000-600 cm-1. During the measurement of samples with different accessories we found strong IR spectra in region 600-100 cm-1 on the samples exhibited brookite phase.
Wettability and photocatalytic properties of titanium dioxide layers prepared by pulsed laser deposition at low temperatures
Mikšovský, Jan ; Jelínek, Miroslav
Contact angle was measured and free surface energy was calculated for TiO2 layers. Contact angle for three known liquids: distilled water, diiodomethane and ethylene glykol was measured.
Nanocomposite Ag-HA biocompatible layers
Jelínek, Miroslav ; Weiserová, Marie ; Kocourek, Tomáš ; Jurek, Karel ; Strnad, J. ; Kudrna, P.
Thin films hydroxyapatite doped with silver were prepared by pulsed laser deposition from solid state target. For deposition KrF excimer laser was used. Film topology was studied using SEM and AFM. Film compostion was determined by WDX method. The silver content in layers was changed from single units to tenth of atomic percents. Results of physical testing and antibacterial test (E coli) will be presented.
Studium plazmatu během pulsní laserové depozice kompozitních vrstev nanokrystalického diamantu/amorfního uhlíku a jejich strukturní vlastnosti
Novotný, Michal ; Jelínek, Miroslav ; Bulíř, Jiří ; Vorlíček, Vladimír ; Mosnier, J.-P. ; Duclére, J.-R. ; Popov, C.
Nanocrystalline diamond/amorphous carbon composite thin films were prepared by hybrid technique combining pulsed laser deposition with a capacitively coupled radiofrequency discharge. Optical emission spectroscopy was performed for plasma monitoring during the deposition process.
Vliv depozičních podmínek na "power factor " (účiník) tenkých termoelektrických vrstev
Zeipl, Radek ; Walachová, Jarmila ; Pavelka, Martin ; Jelínek, Miroslav
The influence of preparation conditions on the power factor and the dependency of the Seebeck coefficient on conductivity for prepared layers were explored. Layers were prepared by laser ablation from Bi.sub.2./sub.Te.sub.3./sub. target on quartz glass substrates. Thickness of layers changed from 13nm to 400nm, the temperature of the substrate during deposition varied from 300.sup.o./sup.C to 480.sup.o./sup.C and density of energy of laser beam from 2J/cm.sup.2./sup. to 10J/cm.sup.2./sup..
Annealing of Bi.sub.2./sub.Te.sub.3./sub. thin films prepared by pulsed laser deposition
Pavelka, Martin ; Zeipl, Radek ; Jelínek, Miroslav ; Walachová, Jarmila ; Studnička, Václav
Bi.sub.2./sub.Te.sub.3./sub. thin films were prepared by laser ablation /PLD/ at room temperature and then annealed in argon atmosphere. Anneling is a widely used method of film properties /primarily crystallinity/ improvement. The influence of annealing on transport properties was studied.
Modification of Bi.sub.2./sub.Te.sub.3./sub. nanolayers
Zeipl, Radek ; Pavelka, Martin ; Jelínek, Miroslav ; Vaniš, Jan ; Šroubek, Filip ; Walachová, Jarmila
Our Bi.sub.2./sub.Te.sub.3./sub. nanolayers were prepared by laser ablation. If we use different depositon condition, prepared layers will have different properties, exactly with rising temperature of substrate during deposition laeyrs becoming smoother. We present STM picture of 60nm thick Bi.sub.2./sub.Te.sub.3./sub. prepared on substrate with temperature during deposition of 400.sup.0.sup.C. We also present modification of layer after many scans were realized by STM on the same place.
Thickness dependence of transport properties of Bi.sub.2./sub.Te.sub.3./sub. layers
Zeipl, Radek ; Lošťák, P. ; Pavelka, Martin ; Žďánský, Karel ; Jelínek, Miroslav ; Walachová, Jarmila
The transport properties of layers, prepared by laser ablation, as Hall mobility and conductivity on their thickness at room temperature are presented. This thermoelectric materials is potential candidate for many applications as for thermoelectric devices for power generation, cooling and sensors.
Thickness dependence of transport properties of Bi.sub.2./sub.Te.sub.3./sub. layers
Zeipl, Radek ; Lošťák, P. ; Pavelka, Martin ; Žďánský, Karel ; Jelínek, Miroslav ; Walachová, Jarmila
The transport properties of layers, prepared by laser ablation, as Hall mobility and conductivity on their thickness at room temperature are presented. This thermoelectric materials is potential candidate for many applications as for thermoelectric devices for power generation, cooling and sensors.

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