Results 21 to 30 of about 167,325,945 (199)

Oxygen partial pressure induced effects on the microstructure and the luminescence properties of pulsed laser deposited TiO2 thin films

AIP Advances, 2017
In this work, the influence of oxygen partial pressure on structural, morphological, and optical properties of TiO2 thin films grown on fused quartz substrate at different oxygen partial pressure by pulsed laser deposition were examined.
A. K. Kunti, K. C. Sekhar, Mario Pereira, M. J. M. Gomes, S. K. Sharma   +4 more
doaj   +1 more source

Evaluation of Conventional Quartz Extraction Protocols for Optically Stimulated Luminescence Dating by Scanning Electron Microscopy Coupled with Energy-Dispersive X-Ray Spectroscopy: An Example from Loess Samples

Quaternary
Quartz purity is essential for reliable optically stimulated luminescence (OSL) dating, yet the mineralogical evolution of sediment samples during extraction is rarely documented at each preparation stage.
Bogdan-Leontin Marti, Șerban-Constantin Grecu, Daniela Brezeanu, Daniela Constantin, Alida Timar   +4 more
doaj   +1 more source

Heat‐ and Light‐Directed Cycloadditions Enable a Pericyclic Cascade Reaction From a Molecular Precursor

Angewandte Chemie, EarlyView.
A multi‐stimuli‐responsive material is designed that responds to light, heat, and mechanical force through distinct chemical reaction pathways. The pathway is directed by self‐assembly and the applied stimulus. A novel pericyclic reaction cascade is also achieved, and the mechanism is supported through density functional theory calculations.
Liulei Ma, Bella Albano, Gary C. George III, Steven A. Lopez, Kristin M. Hutchins   +4 more
wiley   +2 more sources

High‐Efficiency Deep Blue Single‐Gaussian Europium(II) Emitters and Their Emitter‐Host Interactions

Advanced Functional Materials, EarlyView.
Crown‐ether ligands and carborate anions enable vacuum‐processable Eu(II) emitters with efficient single‐Gaussian deep‐blue luminescence. Combined photophysical and computational analyses reveal that excited‐electron confinement and steric shielding of the europium center jointly govern compatibility with OLED host materials, establishing molecular ...
Mahmoud Soleimani, Paulius Imbrasas, Jan‐Michael Mewes, Felix Kaden, Stephanie Anna Buchholtz, Karl Leo, Sebastian Schellhammer, Carsten Rothe, Sebastian Reineke   +8 more
wiley   +1 more source

The late Quaternary slip-rate of the Har-Us-Nuur fault (Mongolian Altai) from cosmogenic Be-10 and luminescence dating [PDF]

, 2009
The Altai range (western Mongolia) accommodates NNE–SSW shortening across the northern India–Eurasia collision zone by dextral slip on faults trending NNW–SSE, and anticlockwise, vertical-axis rotations of fault-bounded blocks.
Bayasgalan, A., Schnabel, C, Walker, R. T., Nissen, E, Molor, E, West, A.J., Amgalan Bayasgalan, Erdenebat Molor, Molor, E., Andrew Carter, Fattahi, M, Carter, A., Walker, RT, Nissen, E., Bayasgalan, A.., Xu, S., Schnabel, C., Carter, Andrew, Fattahi, M., Edwin Nissen, Morteza Fattahi, Xu, S, Christoph Schnabel, Nissen, E. K., A. Joshua West, Richard T. Walker, Sheng Xu, Bayasgalan, A, Carter, A, Walker, R.T., West, A. J., West, AJ   +31 more
core   +1 more source

INORGANIC PHOSPHORS IN GLASS BASED ON LEAD SILICATE GLASSES [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2014
We created and synthesized luminescent composite of the "phosphor in glass" type, based on the lead-silicate matrix and fine-dispersed powder of cerium-activated yttrium-aluminum garnet crystal.
V. A. Aseev, A. Y. Bibik, E. V. Kolobkova, Y. A. Nekrasova, N. V. Nikonorov, A. E. Romanov, J. V. Tuzova, M. A. Shvaleva   +7 more
doaj  

Near‐Infrared Light‐Activated Polydopamine Nanoparticles Conjugated With Transferrin Peptides for Enhanced Brain Accumulation

Advanced Healthcare Materials, EarlyView.
This study demonstrates that Tf‐PDA NPs combine a receptor‐mediated targeting with mild photothermal activation to enhance nanoparticle accumulation in the brain. NIR‐activated Tf‐PDA NPs increase BBB permeability to NPs in vitro and in vivo without inducing cytotoxicity or adverse immune responses.
Rafaela Ferrão, Susana Simões, Paulo Rodrigues‐Santos, Vitor Francisco, Akhilesh Rai, Lino Ferreira   +5 more
wiley   +1 more source

Digital technology for growing alkali halide crystals in an argon atmosphere based on the Bridgman method

Eurasian Journal of Physics and Functional Materials
A process for the purification and growth of alkali halide crystals (AHCs) has been demonstrated using the KCl:Li crystal as a representative example.
K.Sh. Shunkeyev, Sh. Sagimbayeva, A. Kenzhebayeva, Zh. Ubaev   +3 more
doaj   +1 more source

Rapid dose rate estimation for trapped charge dating using pXRF measurements of potassium concentration [PDF]

Geochronology
Quantifying environmental radiation dose rates is an essential step in age calculation using trapped charge dating methods. A means of rapid dose rate estimation would therefore be useful for a variety of reasons, especially in contexts where rapid ...
S. Woor, S. Woor, M. K. D'Arcy, O. B. Lian, M. Schaarschmidt, J. A. Durcan   +5 more
doaj   +1 more source

Clustomesogen Showing Sub‐Zero Liquid Crystal Properties: Supramolecular Assembly Between Cs2[Mo6Ii8(OCOC2F5)6] and Hexaethylenoxide Containing Mesogenic Dimers

Advanced Materials, EarlyView.
Associating a red‐NIR phosphorescent octahedral hexanuclear molybdenum cluster compound with hexaethyleneoxide chains bearing mesogenic units on both ends leads to an emissive hybrid liquid crystal showing mesomorphism on a very unusual temperature range down to −25°C.
Killiann Heinz, Jeanne Rebours, Zoulikha Zerrouqi, Noée Dumait, Maria Amela‐Cortes, Nikolai Scheuring, Sara Simonovska, Sebastian Marino, Max Ebert, Stéphane Cordier, Sabine Laschat, Yann Molard   +11 more
wiley   +1 more source