Search Results - "Karbowiak, M"

Growth of silica shell on hydrophobic upconverting nanocrystals – Mechanism and control of porosity by Wiercigroch-Walkosz, K., Cichos, J., Karbowiak, M.

“…[Display omitted] The method based on the oil/water biphasic system appears as the most effective for the growth of mesoporosus silica shell on hydrophobic…”
Get full text

Interaction of Lanthanide β‑Diketonate Complexes with Polyvinylpyrrolidone: Proton-Controlled Switching of Tb3+ Luminescence by Karbowiak, M, Cichos, J, Buczko, K

“…In the present study the interaction of lanthanide β-diketonate complexes with polyvinylpyrrolidone (PVP) has been systematically investigated using…”
Get full text

Cytotoxic interactions of bare and coated NaGdF4:Yb(3+):Er(3+) nanoparticles with macrophage and fibroblast cells by Wysokińska, E, Cichos, J, Zioło, E, Bednarkiewicz, A, Strządała, L, Karbowiak, M, Hreniak, D, Kałas, W

“…The lanthanide nano-compounds are well suited to serve as fluorescent and magnetic contrast agents and luminescent labels. Although they are considered as…”
Get full text

Energy levels and crystal-field parameters for Pr3+ and Nd3+ ions in rare earth (RE) tellurium oxides RE2Te4O11 revisited – Ascent/descent in symmetry method applied for triclinic site symmetry by Karbowiak, M., Rudowicz, C., Gnutek, P.

Get full text

Crystal-field analysis for RE3+ ions in laser materials: III. Energy levels for Nd3+ and Er3+ ions in LaAlO3, YAlO3, and LaGaO3 single crystals – Combined approach to low symmetry crystal field parameters by Karbowiak, M., Gnutek, P., Rudowicz, C.

“…[Display omitted] ► CF analysis of energy levels for Nd3+ and Er3+ ions in ABO3 crystals is presented. ► Combined ADS/SPM strategy is employed. ► Its…”
Get full text

Forms of crystal field Hamiltonians – A critical review by Rudowicz, C., Gnutek, P., Karbowiak, M.

“…► Inconsistent sequence of operators in crystal field Hamiltonians [CFHs] is identified. ► This affects signs of some low-symmetry CF parameters [CFPs]. ►…”
Get full text

Optical spectra and energy levels analysis of the 4f(N) ions doped into Ba2YCl7 by Karbowiak, M, Cichos, J, Rudowicz, C

“…Absorption emission and excitation spectra are measured and analyzed to achieve assignments of energy levels for 4f(N) ions in Ba(2)YCl(7):RE(3+) (RE = Pr, Nd,…”
Get full text

Energy levels and crystal field parameters for Nd3+ ions in BaY2F8, LiKYF5, and K2YF5 single crystals by Karbowiak, M, Gnutek, P, Rudowicz, C

“…The available experimental energy levels of Nd(3+) ions doped into single crystals of BaY(2)F(8), LiKYF(5), and K(2)YF(5), which exhibit low site symmetry, are…”
Get more information

Synthesis and characterization of monodisperse Eu3＋ doped gadolinium oxysulfide nanocrystals by Cichos, J., Karbowiak, M., Hreniak, D., Stręk, W.

“…Gd202S：Eu3＋ nanoparticles were synthesized using two step process consisting of sulfuration of basic carbonates obtained by homogenous precipitation. Annealing…”
Get full text

Spectroscopic characterization of ligands on the surface of water dispersible NaGdF4:Ln3+ nanocrystals by Cichos, J., Karbowiak, M.

“…► Spectroscopic properties of NaGdF4:Eu3+(Er3+) nanoparticles are systematically studied. ► Fluorescence as a reliable tool for determination of the species…”
Get full text

Influence of coating on the photoluminescence of Tb3＋ doped ZnSe/ZnS core-shell quantum dots by Cichos, J., Karbowiak, M., Hreniak, D., Stręk, W.

“…Tb3＋-doped ZnSe and ZnSe/ZnS nanocrystals were synthesized using modified hot-injection method. The observation of the characteristic quantum dots absorption…”
Get full text

Crystal-field analysis for RE3+ ions in laser materials: I. Absorption spectra and energy levels calculations for Nd3+ and Pr3+ ions in ABCO4 crystals by Karbowiak, M., Rudowicz, C.

Get full text

Structural and luminescent properties of nano-sized NaGdF4:Eu3+ synthesised by wet-chemistry route by Mech, A., Karbowiak, M., Kępiński, L., Bednarkiewicz, A., Stręk, W.

“…Hexagonal Eu3+:NaGdF4 fluoride with average grains size of 20nm was obtained from solution by a co-precipitation method. Morphology of the obtained powder was…”
Get full text

Structural and luminescent properties of nanostructured KGdF4:Eu3+ synthesised by coprecipitation method by Karbowiak, M., Mech, A., Bednarkiewicz, A., Stręk, W.

“…The single-phase low-temperature cubic form of KGdF4, with the average crystallites size of 19nm precipitates from a solution. The cubic phase is stable up to…”
Get full text

Reanalysis of energy levels and crystal field parameters for Er3+ and Tm3+ ions at C2 symmetry sites in hexahydrated trichloride crystals—Intricate aspects of multiple solutions for monoclinic symmetry by KARBOWIAK, M, GNUTEK, P, RUDOWICZ, C

Get full text

Size dependence on infrared spectra of NaGdF4 nanocrystals by Bednarkiewicz, A., Mączka, M., Strek, W., Hanuza, J., Karbowiak, M.

Get full text

Synthesis and properties of solution-processed Eu3+:BaY2F8 by KARBOWIAK, M, MECH, A, BEDNARKIEWICZ, A, STREK, W

Get full text

Absorption spectrum and crystal-field analysis of U4+ ions in CsCdBr3 single crystals by Karbowiak, M., Mech, A., Drożdżyński, J.

Get full text

Effect of crystallite size on structural and luminescent properties of nanostructured Eu3+:KGdF4 synthesised by co-precipitation method by KARBOWIAK, Mirosaw, MECH, Agnieszka, KEPINSKI, Leszek, MIELCAREK, Witold, HUBERT, Solange

“…The Eu3+:KGdF4 powders with average crystallite size of 20 and 25 nm have been obtained from solution by co-precipitation method. Morphology of the as-received…”
Get full text

6d15f1 ↔ 5f2 transitions in U4+ in Cs2NaYCl6 by BEHRENDT, M, KUKLINSKI, B, GRINBERG, M, KARBOWIAK, M

Get full text