Results 81 to 90 of about 21,026 (228)
Electroluminescence of new coordination compounds of europium ions with β-diketones, acetic and butyric acids [PDF]
In this work, organic light-emitting LEDs based on Eu3+ coordination compounds with β-diketones and acetic and butyric acids were created and studied.
Anna V. Osadchenko +8 more
doaj +1 more source
The inclusion of the effects of hyperfine splitting can significantly lower the abundance estimate of Eu from singly ionized lines which lie on the flat portion of the curve of growth. In the 21 cool Ap stars studied by Adelman and the five Am stars studied by Smith, the Eu abundance was reduced by 0.4 dex on the average.
M. R. Hartoog +2 more
openaire +1 more source
Europium-155 in Debris from Nuclear Weapons
The lithium-drifted germanium detector enables determination of europium-155 on a routine basis in environmental samples contaminated with debris from nuclear weapons.
A. Aarkrog +3 more
core +1 more source
ABSTRACT The rational design of lanthanide‐based luminescent systems using purely theoretical approaches remains challenging due to the reliance of existing models on experimental data. Herein, we propose a theoretical protocol for the design of new Eu3+ based luminescent systems, starting from a previously synthesized and experimentally characterized ...
Claudio M. B. Neto +5 more
wiley +1 more source
Zero‐dimensional carbon nanomaterials are presented as multifunctional platforms linking structure, property, and sensing performance. Surface engineering and heteroatom doping modulate electron‐transfer and luminescent behavior, enabling electrochemical, photoluminescent, and electrochemiluminescent detection. Fundamental design principles, analytical
Gustavo Martins +8 more
wiley +1 more source
Epitaxial Core/Shell Nanocrystals of (Europium-Doped) zirconia and hafnia
A careful design of nanocrystal architecture can strongly enhance the nanocrystal function. So far, this strategy faced a synthetic bottleneck in the case of refractory oxides.
Maria Chiara, Spadaro +10 more
core +1 more source
Dielectric relaxation studies of Eu3+ doped graphene oxide nano layers
A bulk of graphene oxide nanosheets was prepared using the modified Hummers’ method. Rare earth materials, such as europium nitrate pentahydrate compounds, are added to graphene oxide in varying percentages to study the dielectric behavior of graphene ...
Nikhila Ann Abraham +2 more
doaj +1 more source
Lunar Crustal Formation by Melt Migration and Differentiation Within a Stagnant Lid
Abstract The lunar anorthosite highlands represent the Moon's primary crust, which formed during the solidification of a magma ocean following the Moon‐forming giant impact. However, the canonical model of anorthite flotation in the crystallizing magma ocean often struggles to reproduce the long > ${ >} $200 Myr solidification timescale required by the
K. H. Dodds, C. Michaut, J. A. Neufeld
wiley +1 more source
We present characterization of the hyperfine interaction for the europium in hydrated europium chloride and as a dopant in yttrium orthosilicate.
Sellars, Matthew +2 more
core +1 more source
Europium bioaccumulation by artrospira platensis and its effect on biomass [PDF]
Europium is one of the most reactive rare-earth elements, which due to its physical and chemical properties is widely applied in many technological processes.
YUSHIN, Nikita +4 more
core

