Results 31 to 40 of about 21,026 (228)

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

Time-resolved fluorescence-based europium-derived probes for peroxidase bioassays, citrate cycle imaging and chirality sensing

, 2005
The dissertation describes the development of europium-derived fluorescence probes for biological substances in aqueous solution. A scheme is shown in Fig. 7.1.
Lin, Zhihong
core   +1 more source

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

Strain‐Programmable Luminescent Adhesive Patch With Tartrazine‐Mediated Optical Skin Clearing for Photochemical Tissue Bonding

Advanced Functional Materials, EarlyView.
We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim, Kyungjoo Jo, Kwanghyeon Park, Jun Hee Kim, Jong Hyeong Cho, Inhoo Choi, Sei Kwang Hahn   +6 more
wiley   +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

On europium digallides

Zeitschrift für anorganische und allgemeine Chemie, 2023
AbstractThe europium gallide Eu1‐xGa2+3x (x is between 0.06 and 0.07) has been synthesized and its crystal structure has been refined from single crystal X‐ray diffraction data. Eu1‐xGa2+3x crystallizes with hexagonal structure related to the AlB2‐type (space group P6/mmm, a=4.354 Å, c=4.485 Å).
Olga Sichevych, Reiner Ramlau, Marcus Schmidt, Walter Schnelle, Yuri Grin   +4 more
openaire   +2 more sources

Designed Lewis Acid–Base Passivation for High Performance Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
ABSTRACT Silicon's high cost and long energy payback time remain major barriers to the global expansion of solar power. In contrast, metal–halide perovskites offer abundant, solution‐processable absorbers, and have achieved efficiencies of 25%–30%, positioning them as strong competitors to silicon.
Afna Manaf, Hiba Shahulhameed, Bhabani Sankar Swain, Shengzhong (Frank) Liu, Adel Najar   +4 more
wiley   +1 more source

Europium-Based Metal–Organic Framework as a Dual Luminescence Sensor for the Selective Detection of the Phosphate Anion and Fe³⁺ Ion in Aqueous Media

, 2018
A new three-dimensional europium-based metal–organic framework has been synthesized with the newly designed ligand L (6-[1-(4-carboxyphenyl)-1H-1,2,3-triazol-4-yl]­nicotinic acid).
Purna Chandra Rao (3358196), Sukhendu Mandal, Sukhendu Mandal (586958), Purna Chandra Rao   +3 more
core   +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

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