Results 21 to 30 of about 46,511 (223)

Luminescence and structural properties of europium doped titania in the 600–750 °C range

Open Ceramics, 2023
In this study, europium doped titania nanophosphors are synthetized and characterize in order to understand the relationship between structural changes induced by heat treatments and luminescence properties.
Nicolas Alonso, Étienne Copin, Florence Ansart, Yannick Le Maoult, Thierry Sentenac, Philippe Brevet, Sandrine Duluard   +6 more
doaj   +1 more source

An EXAFS spectroscopic study of Europium (III) complexation with dafone

Materials Research Express, 2020
An extended x-ray absorption fine structure (EXAFS) for L _III Eu crystal edge at 6977 eV energy was studied on an original complex based on europium. The ligand was coordinated entirely with respect to europium atom for [Eu(dafone) _2 Cl _2 .(H _2 O) _2
Abdolhamed Shahedi, Javad Rahighi, Mohammad Agha Bolorizadeh   +2 more
doaj   +1 more source

Europium (II)-Doped CaF₂ Nanocrystals in Sol-Gel Derived Glass-Ceramic: Luminescence and EPR Spectroscopy Investigations

Nanomaterials, 2022
The remarkable properties of Eu2+-activated phosphors, related to the broad and intense luminescence of Eu2+ ions, showed a high potential for a wide range of optical-related applications.
Corina Secu, Arpad-Mihai Rostas, Mihail Secu   +2 more
doaj   +1 more source

Highly efficient and air-stable Eu(II)-containing azacryptates ready for organic light-emitting diodes

Nature Communications, 2020
Though divalent-europium-based complexes are promising materials for next-generation light-emitting devices, their poor air stability limits their applicability.
Jiayi Li, Liding Wang, Zifeng Zhao, Boxun Sun, Ge Zhan, Huanyu Liu, Zuqiang Bian, Zhiwei Liu   +7 more
doaj   +1 more source

Spin-polarized quasiparticle transport in exchange-split superconducting aluminum on europium sulfide

, 2014
We report on nonlocal spin transport in mesoscopic superconducting aluminum wires in contact with the ferromagnetic insulator europium sulfide. We find spin injection and long-range spin transport in the regime of the exchange splitting induced by ...
Beckmann, D., Fischer, G., Sürgers, C., Wolf, M. J.   +3 more
core   +1 more source

Luminescence and x-ray absorption measurements of persistent SrAl2O4:Eu,Dy powders: evidence for valence state changes [PDF]

, 2011
The development of new efficient afterglow phosphors is currently hampered by a limited understanding of the persistent luminescence mechanism. Radioluminescence and x-ray absorption measurements on the persistent phosphor SrAl2O4:Eu,Dy were combined to ...
Botterman, Jonas, Korthout, Katleen, Nikitenko, S, Poelman, Dirk, Smet, Philippe, Van den Eeckhout, Koen   +5 more
core   +2 more sources

Shedding Light on the Anthropogenic Europium Cycle in the EU–28. Marking Product Turnover and Energy Progress in the Lighting Sector

Resources, 2018
Phase-out strategies for incandescent bulbs in favor of advanced energy-efficiency lighting systems such as fluorescent lamps and solid-state technology have considerably reduced the energy use for lighting, but have also resulted in dependence on many ...
Luca Ciacci, Ivano Vassura, Fabrizio Passarini   +2 more
doaj   +1 more source

Stars of extragalactic origin in the solar neighborhood [PDF]

, 2004
We computed the spatial velocities and the galactic orbital elements using Hipparcos data for 77 nearest main-sequence F-G-stars with published the iron, magnesium, and europium abundances determined from high dispersion spectra and with the ages ...
B. Edvardsson, B. M. Tinsley, B. W. Carney, B. W. Carney, C. Allen, C. Palma, D. A. Berg Vanden, D. A. Berg Vanden, D. Dinescu, D. Dinescu, D. L. Barris, F.-K. Thielemann, G. Gilmore, J. Bernkoff, J. C. Wheeler, K. Freeman, K. Furmann, L. Mashonkina, L. Mashonkina, L. R. King, Larson, M. Barbier-Brossat, M. Bellazini, M. Mateo, O. J. Eggen, O. Yu. Gnedin, R. B. Hanson, R. Ibata, S. Bergh van den, S. Leon, T. Tshuchiya, T. V. Borkova, T. V. Borkova, T. V. Borkova, T. V. Borkova, V. A. Marsakov, V. A. Marsakov   +36 more
core   +2 more sources

Synthesis and Characterization of Tb[N(CN)2]3·2H2O and Eu[N(CN)2]3·2H2O: [PDF]

, 2006
Two new rare-earth dicyanamides, namely, Tb[N(CN)2]3·2H2O and Eu[N(CN)2]3·2H2O, have been prepared by ion exchange in aqueous solution, followed by evaporation of the solvent at room temperature.
Nag, Abanti, Schmidt, Peter J., Schnick, Wolfgang   +2 more
core   +1 more source

Reinvestigation of Reactions of HgPh₂ with Eu and Yb Metal and the Synthesis of a Europium(II) Bis(tetraphenylborate)

Molecules, 2022
Europium bis(tetraphenylborate) [Eu(thf)7][BPh4]2⋅thf containing a fully solvated [Eu(thf)7]2+ cation, was synthesized by protolysis of “EuPh2” (from Eu and HgPh2) with Et3NHBPh4, and the structure was determined by single-crystal X-ray diffraction ...
Michal Wiecko, Zhifang Guo, Glen B. Deacon, Peter C. Junk   +3 more
doaj   +1 more source