Results 41 to 50 of about 33,849 (279)

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

C-type Yb2Te3O9

IUCrData
The title compound, diytterbium enneaoxidotritellurate(IV), was obtained in its C-type crystal structure from the binary oxides at 1073 K using a CsCl flux. It crystallizes isotypically with C-type Tm2Te3O9 and Lu2Te3O9, closing this gap of knowledge.
Patrick Höss, Sheng-Chun Chou, Philip L. Russ, Ralf J. C. Locke, Thomas Schleid   +4 more
doaj   +1 more source

Optical Properties and Upconversion Luminescence of BaTiO₃ Xerogel Structures Doped with Erbium and Ytterbium

Gels, 2022
Erbium upconversion (UC) photoluminescence (PL) from sol-gel derived barium titanate (BaTiO3:Er) xerogel structures fabricated on silicon, glass or fused silica substrates has been studied. Under continuous-wave excitation at 980 nm and nanosecond pulsed
Ekaterina I. Lashkovskaya, Nikolai V. Gaponenko, Margarita V. Stepikhova, Artem N. Yablonskiy, Boris A. Andreev, Vadim D. Zhivulko, Alexander V. Mudryi, Igor L. Martynov, Alexander A. Chistyakov, Nikolai I. Kargin, Vladimir A. Labunov, Tamara F. Raichenok, Sergey A. Tikhomirov, Victor Yu. Timoshenko   +13 more
doaj   +1 more source

Ytterbium-doped tantalum pentoxide waveguide lasers

, 2015
We have demonstrated a Yb:Ta2O5 waveguide laser fabricated by RF magnetron sputtering on oxidised silicon. The waveguide laser was end-pumped with a laser diode at 977 nm and lasing was observed between 1015 and 1020 nm. The launched pump power threshold
Baum, S., Kharb, Preeti, Lister, Matthew L., Marshall, Herman, O'Dea, Christopher P., Stanley, E. C.   +5 more
core   +2 more sources

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

Advanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr, Alexander Biewald, Andre Mähringer, Thaddäus J. Koller, Peter Mayer, Markus Döblinger, Achim Hartschuh, Dana D. Medina   +7 more
wiley   +1 more source

N-alkanes v. ytterbium/faecal index as two methods for estimating herbage intake of dairy cows fed on diets differing in the herbage : maize silage ratio and feeding level

Animal, 2012
The aim of this study was to compare the n-alkanes and the ytterbium (Yb)/faecal index techniques as two methods for estimating the herbage intake of dairy cows fed indoors on different herbage : supplement ratios and feeding levels. The supplement was a
E. Pérez-Ramírez, J.L. Peyraud, R. Delagarde   +2 more
doaj   +1 more source

Effect of Zr on Microstructure and Mechanical Properties of the Al–Cu–Yb and Al–Cu–Gd Alloys

Metals, 2022
The effect of zirconium on the microstructure, phase composition, and mechanical properties of AlCuYb and AlCuGd alloys was studied. The microstructure of the as-cast alloys did not consist of new intermetallic phases of zirconium with other elements, so
Olga I. Mamzurina, Sayed M. Amer, Irina S. Loginova, Maria V. Glavatskikh, Andrey G. Mochugovskiy, Ruslan Yu. Barkov, Andrey V. Pozdniakov   +6 more
doaj   +1 more source

High Entropy Wide‐Bandgap Borates with Broadband Luminescence and Large Nonlinear Optical properties

Advanced Functional Materials, EarlyView.
High‐entropy rare‐earth borates exhibit excellent nonlinear optical and broadband luminescence properties arising from multi‐component doping, chemical disorder, increased configurational entropy, and increased lattice and electronic anharmonicity. This formulation enabled us to obtain a large, environmentally stable single crystal with 3X higher laser‐
Saugata Sarker, Yu Wang, Yongwen Sun, Caeli Benyacko, Saeed S.I. Almishal, Tao Zhou, Zhiyu Zhang, Jadupati Nag, Himirkanti Sarkar, Jeffrey Shallenberger, Hemant Yennawar, Yang Yang, Jon‐Paul Maria, Zhiqiang Mao, Venkatraman Gopalan   +14 more
wiley   +1 more source

Growth, Spectroscopic Characterization and Continuous-Wave Laser Operation of Er,Yb:GdMgB₅O₁₀Crystal

Inorganics
A transparent Er3+,Yb3+:GdMgB5O10 single crystal with dimensions up to 24 × 15 × 12 mm was grown successfully by the high-temperature solution growth on dipped seeds technique from K2Mo3O10-based solvent.
Konstantin N. Gorbachenya, Elena A. Volkova, Victor V. Maltsev, Victor E. Kisel, Diana D. Mitina, Elizaveta V. Koporulina, Nikolai N. Kuzmin, Ekaterina I. Marchenko, Vladimir L. Kosorukov   +8 more
doaj   +1 more source

THE SYNTHESIS AND STUDY OF THE LUMINESCENCE PROPERTIES OF SOLID SOLUTIONS (Y_1-X-Y-ZYB_XER_YHO_Z)₃AL₅O₁₂ WITH LASER EXCITATION

Вестник Северо-Кавказского федерального университета, 2022
Synthesized solid solutions of (Y1-x-y-zYbxEryHoz)3Al5O12, studied their luminescence characteristics, the dependence of the intensity of the Stokes IR luminescence band 0,96-1.1 microns and 144-1.68 microns, 1,83-2,15 microns, the concentration of ions,
Egor I. Pozdnyakov
doaj