Results 31 to 40 of about 46,450 (213)

Enhancement in red emission at room temperature from europium doped ZnO nanowires by 1,10 phenanthroline-europium interface induced resonant excitations

AIP Advances, 2017
We show that europium doped ZnO nanowires after surface modification with organic ligand, 1,10 phenanthroline (phen) leads to strong red emission at 613 nm which is a characteristic emission from the atomic levels of Eu3+.
Soumen Dhara, A. K. Raychaudhuri
doaj   +1 more source

Ab initio properties of the ground-state polar and paramagnetic europium-alkali-metal-atom and europium-alkaline-earth-metal-atom molecules

, 2014
The properties of the electronic ground state of the polar and paramagnetic europium-$S$-state-atom molecules have been investigated. Ab initio techniques have been applied to compute the potential energy curves for the europium-alkali-metal-atom, Eu$X$ (
Tomza, Michał
core   +1 more source

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

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

Advanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao, Christian Weinberger, Jakob Steube, Matthias Bauer, Martin Brehm, Michael Tiemann   +5 more
wiley   +1 more source

Structural and Optical Characterization of Silica Nanospheres Embedded with Monodisperse CeO₂-Eu³⁺ Nanocrystals

Magnetochemistry, 2022
Luminescent nanocrystals embedded into silica microspheres were shown to be useful for silica labeling for biological applications, ensuring mechanical and chemical stability, nontoxicity, biocompatibility and optical properties.
Corina Secu, Cristina Bartha, Elena Matei, Cristian Radu, Mihail Secu   +4 more
doaj   +1 more source

Electronic structure and superconductivity of Europium

, 2010
We have calculated the electronic structure of Eu for the bcc, hcp, and fcc crystal structures for volumes near equilibrium up to a calculated 90 GPa pressure using the augmented-plane wave method in the local-density approximation.
Andersen, Butler, D.A. Papaconstantopoulos, Debessai, Freeman, Gaspari, Gillan, Grosshans, Hedin, Hopfield, Kittel, Kobayasi, Kuneš, Lane W. Nixon, Lehmann, Lei, Lounasmaa, Matsumoto, Matsumoto, Matsumoto, McMillan, Min, Moruzzi, Nereson, Nixon, Nixon, Richter, Takemura, Turek   +28 more
core   +1 more source

Orientation‐Confinement‐Engineered Stabilization of Ferroelectricity in HfO2 toward Maximum Polarization

Advanced Science, EarlyView.
Ferroelectric phase stability in Hf₀.5Zr₀.5O2 films is enhanced by confinement to the (111) crystal orientation, as demonstrated by first‐principles calculations and experiments. Polarization approaching its maximum value is achieved through selective ferroelectric switching paths, which are further tuned by oxygen vacancies and cation doping to ...
Fatoye Sawyerr, Yongqing Sun, Zekun Zhang, Kang Jia, Shuning Lv, Qi Hu, Shu Shi, Qiushi Huang, Xie Zhang, Xiaoli Fan, Li‐min Liu, Shifeng Wen, Zheng Wen, Tengfei Cao, Jingsheng Chen   +14 more
wiley   +1 more source

Energy transfer process in the reaction system NH2OH-OH-NaOH-CU(II)−Eu(III) / thenoyltrifluoroacetone

International Journal of Photoenergy, 2005
Chemiluminescence (CL) in the system containing hyrdroxylamine, sodium hydroxide, copper(II) ions and complex of europium(III) with thenoyltrifluoroacetone has been studied.
Stefan Lis, Małgorzata Kaczmarek
doaj   +1 more source

EUROPIUM ION INFLUENCE ON THE FORMATION OF Ag-NANOPARTICLES IN FLUORINE PHOSPHATE GLASSES [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2015
The paper deals with research of formation characteristics of silver nanoparticles in fluorophosphate glasses 0.25 Na2O - 0.5 P2O5 - 0.10 Ga2O3 - 0.075 AlF3 - 0.025 NaF - 0.05 ZnF2 doped with EuF3 (0.8 and 4 wt.%) and without them.
R. O. Pysh'ev, E. V. Kolobkova
doaj   +1 more source