Results 21 to 30 of about 21,026 (228)

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

Effects of Europium Complex on Thermal and Photoluminescence Properties of Polyurethane-Europium Materials

, 2023
A europium complex with double bonds was synthesized with crotonic acid as the ligand and a europium ion as the center ion. Then, the obtained europium complex was added to synthesized poly(urethane-acrylate) macromonomers to prepare the bonded ...
Yunqiu Li, Congcong He, Liming Zhou, Shaoming Fang, Liuyang Li, Xiongwei Qu, Lijun Gao   +6 more
core   +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

Features of the Spectroscopic Characteristics of Yttrium–Aluminum Garnets Doped with Europium at Different Concentrations

Crystals, 2023
The article presents the results of measuring the luminescence spectra and luminescence excitation spectra for YAG:Eu with europium concentrations of 2, 6, 8, and 10%. The materials were synthesized by solid-phase synthesis.
Nurgul Zhanturina, Daulet Sergeyev, Zukhra Aimaganbetova, Abzal Zhubaev, Karlygash Bizhanova   +4 more
doaj   +1 more source

The luminescent properties of europium thenoyltriflouroacetone ccomplexes with 2-phenyl-1H-imidazo[4,5-f][1,10]phenanthroline based ligands [PDF]

, 2020
The goal of this work is to synthesize a series of europium complexes based on 2-phenyl-1Himidazo[4,5-f][1,10] phenanthroline ligand structure and optimize the luminescent quantum yield and fluorescence of lanthanide complexes and to gain an ...
NC DOCKS at Western Carolina University, Venturo, Paul Jacob   +1 more
core  

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 Complex with Functionalized Carbon Nanotubes: A New Lanthanide Photoluminescence Nanomaterial [PDF]

, 2011
N-(2-Amino-phenyl)-2-{2-[(2-amino-phenylcarbamoyl)-methoxy]-phenoxy}-acetamide (B) was firstly immobilized on the single-walled carbon nanotubes and characterized by 1H NMR, IR spectra and TEM images.
Yin, Yan-Sheng, Yan Sheng Yin, An, Yan, Li, Xiao-Feng, Wen Ge Li, Xiao Feng Li, Kin Tak Lau, Li, Wen-Ge, Yan An, Lau, Kin-Tak   +9 more
core   +1 more source

Differences in Emission Properties for Triboluminescent EuD4TEA Synthesized Using Europium Nitrate or Europium Acetate

, 2021
Europium tetrakis dibenzoylmethide triethylammonium (EuD4TEA) is one of the most intense triboluminescent (TL) materials currently known. It was recently reported that the triboluminescent yield was increased by 82% by changing the starting europium salt
John Miller, William Hollerman, Ross S. Fontenot   +2 more
core   +1 more source

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

Time-resolved quantitative assays and imaging of enzymes and enzyme substrates using a new europium fluorescent probe for hydrogen peroxide

, 2005
The thesis describes the development of a novel reversible H2O2 fluorescent probe comprising the ternary complex of europium(III), tetracycline and hydrogen peroxide; and its application in the assays of H2O2, of H2O2 producing oxidases and their ...
Wu, Meng
core   +1 more source