Search Results - "Sildos, I."

Effect of lonsdaleite on the optical properties of impact diamonds by Yelisseyev, A., Gromilov, S., Afanasiev, V., Sildos, I., Kiisk, V.

“…The special features of impact diamonds are the orientation of the nanosized grains relative to each other, the presence of hexagonal diamond (lonsdaleite, L)…”
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Phase composition and morphology of nanoparticles of yttrium orthophosphates synthesized by microwave-hydrothermal treatment: The influence of synthetic conditions by Vanetsev, A.S., Samsonova, E.V., Gaitko, O.M., Keevend, K., Popov, A.V., Mäeorg, U., Mändar, H., Sildos, I., Orlovskii, Yu.V.

“…Herein we report the study of the influence of synthesis conditions during the microwave-hydrothermal crystallization of freshly precipitated gels on the phase…”
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Local strain-induced band gap fluctuations and exciton localization in aged WS2 monolayers by Krustok, J., Kaupmees, R., Jaaniso, R., Kiisk, V., Sildos, I., Li, B., Gong, Y.

“…Optical properties of aged WS2 monolayers grown by CVD method on Si/SiO2 substrates are studied using temperature dependent photoluminescence and reflectance…”
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Spectroscopic study of NE8 defect in synthetic diamond for optical thermometry by Sildos, I., Loot, A., Kiisk, V., Puust, L., Hizhnyakov, V., Yelisseyev, A., Osvet, A., Vlasov, I.

“…We carried out a laser spectroscopic investigation of high-pressure, high-temperature (HTHP) synthetic diamond containing NE8 defects. In the photoluminescence…”
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Optical study of local strain related disordering in CVD-grown MoSe2 monolayers by Krustok, J., Raadik, T., Jaaniso, R., Kiisk, V., Sildos, I., Marandi, M., Komsa, H.-P., Li, B., Zhang, X., Gong, Y., Ajayan, P. M.

“…We present temperature dependent micro-photoluminescence and room temperature photoreflectance spectroscopy studies on aged MoSe2 monolayers with high surface…”
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Plasmonic effect of spray-deposited Au nanoparticles on the performance of CSS CdS/CdTe solar cells by Spalatu, N., Hiie, J., Maticiuc, N., Krunks, M., Katerski, A., Mikli, V., Sildos, I.

“…•Spray pyrolysis of HAuCl4 solution is reliable method for deposition of Au nanoparticles.•The Au nanoparticles grain sizes 30–100nm has been deposited on CdTe…”
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First-principles calculations of optical and electronic properties of pure and Sm3+-doped TiO2 by BRIK, M. G, SILDOS, I, KIISK, V

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Calculations of physical properties of pure and doped crystals: Ab initio and semi-empirical methods in application to YAlO3:Ce3+ and TiO2 by BRIK, M. G, SILDOS, I, KIISK, V

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Crystal field calculations of energy levels of the Ni2+ ions in MgO by Mironova-Ulmane, N., Brik, M.G., Sildos, I.

“…The electronic energy levels of six-fold coordinated Ni2+ ion in magnesium oxide MgO were calculated using the exchange charge model of crystal field theory…”
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Room Temperature Optical Thermometry Based on the Luminescence of the SiV Defects in Diamond by Miller, C., Puust, L., Kiisk, V., Ekimov, E., Vlasov, I., Orlovskii, Y., Sildos, I.

“…Diamond microcrystals containing silicon-vacancy (SiV) defects were synthesized by using a high-pressure high-temperature treatment of a mixture of pertinent…”
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Effect of Zn:S molar ratio in solution on the properties of ZnS thin films and the formation of ZnS nanorods by spray pyrolysis by Dedova, T., Krunks, M., Gromyko, I., Mikli, V., Sildos, I., Utt, K., Unt, T.

“…The ZnS layers morphology, structure, composition, and optical properties were investigated with respect to the precursors (zinc chloride and thiocarbamide,…”
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Plasmonic TiO2:Au composite layers deposited in situ by chemical spray pyrolysis by Oja Acik, I., Oyekoya, N.G., Mere, A., Loot, A., Dolgov, L., Mikli, V., Krunks, M., Sildos, I.

“…Composite TiO2 layers with embedded Au-nanoparticles with a size of 8–20nm were deposited in situ by chemical spray pyrolysis. EDS studies show that increase…”
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Surface plasmon resonance caused by gold nanoparticles formed on sprayed TiO2 films by Oja Acik, I., Dolgov, L., Krunks, M., Mere, A., Mikli, V., Pikker, S., Loot, A., Sildos, I.

“…Titania films covered by gold nanoparticles are prepared by combination of spray pyrolysis and spin-coating methods. Proposed combination of techniques is…”
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Characterisation of samarium and nitrogen co-doped TiO2 films prepared by chemical spray pyrolysis by Oja Acik, I., Kiisk, V., Krunks, M., Sildos, I., Junolainen, A., Danilson, M., Mere, A., Mikli, V.

“…► The TiO2:N:Sm thin films deposited by chemical spray pyrolysis have anatase structure. ► According to XPS, N is incorporated into the TiO2 matrix. ► N-doping…”
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Theoretical and experimental modeling of interstitial laser hyperthermia with surface cooling device using Nd3+-doped nanoparticles by Pominova, D. V., Romanishkin, I. D., Grachev, P. V., Borodkin, A. V., Vanetsev, A. S., Orlovskaya, E. O., Orlovskii, Yu. V., Sildos, I., Loschenov, V. B., Ryabova, A. V.

“…To improve methods of laser hyperthermia for the treatment of bulk malignant neoplasms, an urgent task is the development of techniques and devices that…”
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Spectroscopic properties of Eu-doped Y-stabilized ZrO2 microtubes by Utt, K., Part, M., Tätte, T., Kiisk, V., Brik, M.G, Chaykin, A.A., Sildos, I.

“…Hereby we report a new microstructured luminescent material – Eu-doped yttria-stabilized zirconia (YSZ) microtube – prepared by a special sol–gel route…”
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Fluctuation kinetics of fluorescence hopping quenching in the Nd3+:Y2O3 spherical nanoparticles by Orlovskii, Yu.V., Popov, A.V., Platonov, V.V., Fedorenko, S.G., Sildos, I., Osipov, V.V.

“…We study the peculiarities of energy transfer kinetics from the 4F3/2 laser level in the Nd3+ doped Y2O3 spherical nanoparticles of monoclinic phase…”
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Neutron diffraction study of microstructural and magnetic effects in fine particle NiO powders by Balagurov, A. M., Bobrikov, I. A., Sumnikov, S. V., Yushankhai, V. Yu, Grabis, J., Kuzmin, A., Mironova-Ulmane, N., Sildos, I.

“…Nickel oxide powders with grain sizes ranging from 100 to 1500 nm have been studied by high‐resolution neutron diffraction. We have found that the atomic…”
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Spectroscopic and crystal-field analysis of energy levels of Eu3+ in SnO2 in comparison with ZrO2 and TiO2 by Ma, C.-G., Brik, M.G., Kiisk, V., Kangur, T., Sildos, I.

“…▶ Crystal field studies of Eu3+ energy levels in three metal oxides TiO2, SnO2, and ZrO2 were performed. ▶ Crystal field induced J-mixing of different states…”
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Luminescence of RE-ions in HfO2 thin films and some possible applications by LANGE, S, KIISK, V, REEDO, V, KIRM, M, AARIK, J, SILDOS, I

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