Results 71 to 80 of about 84,754 (197)

Luminescent behavior of the K2SiF6:Mn4+ red phosphor at high fluxes and at the microscopic level [PDF]

, 2016
Phosphor-converted white light-emitting diodes (LEDs) are becoming increasingly popular for general lighting. The non-rare-earth phosphorK(2)SiF(6): Mn4+, showing promising saturated red d-d-line emission, was investigated.
Joos, Jonas, Martin, Lisa, Poelman, Dirk, Sijbom, Heleen, Smet, Philippe, Van den Eeckhout, Koen   +5 more
core   +2 more sources

Luminescence efficiency measurements of silicon nanoclusters [PDF]

Applied Physics Letters, 1998
We present the results of what we believe to be the first study of the power efficiency of room temperature photoluminescence from thin films of silica containing silicon nanoclusters. Films were prepared by plasma enhanced chemical vapor deposition from silane and nitrous oxide precursors. Luminescence was excited using the 476 nm line of an argon-ion
Kenyon, AJ, Trwoga, PF, Pitt, CW, Rehm, G   +3 more
openaire   +2 more sources

Charakterizace tenkovrstvých elektroluminiscenčních součástek [PDF]

, 2008
Jádrem této disertační práce bylo studovat optické a elektrické charakteristiky tenkovrstvých elektroluminiscenčních součástek řízených střídavým proudem (ACTFEL) a zejména vliv procesu stárnutí luminiforů na jejich optické a elektrické vlastnosti. Cílem
Ahmed, Mustafa M. Abdalla
core  

Organic light-emitting diodes with new dyes based on coumarin

Научно-технический вестник информационных технологий, механики и оптики
The results of studying the luminescent properties of organic light-emitting diodes based on new luminescent compounds containing a coumarin fragment are presented.
A. V. Osadchenko, A. A. Vashchenko, I. A. Zakharchuk, D. S. Daibagya, S. A. Ambrozevich, N. Yu. Volodin, D. A. Cheptsov, S. M. Dolotov, V. F. Traven, A. I. Avramenko, S. L. Semenova, A. S. Selyukov   +11 more
doaj   +1 more source

Synthesis, Cytotoxicity Assessment and Optical Properties Characterization of Colloidal GdPO₄:Mn²⁺, Eu³⁺ for High Sensitivity Luminescent Nanothermometers Operating in the Physiological Temperature Range

Nanomaterials, 2020
Herein, a novel synthesis method of colloidal GdPO4:Mn2+,Eu3+ nanoparticles for luminescent nanothermometry is proposed. XRD, TEM, DLS, and zeta potential measurements confirmed the crystallographic purity and reproducible morphology of the obtained ...
K. Maciejewska, B. Poźniak, M. Tikhomirov, A. Kobylińska, L. Marciniak   +4 more
doaj   +1 more source

Can Europium Atoms form Luminescent Centres in Diamond: A combined Theoretical-Experimental Study

, 2019
The incorporation of Eu into the diamond lattice is investigated in a combined theoretical-experimental study. The large size of the Eu ion induces a strain on the host lattice, which is minimal for the Eu-vacancy complex.
Haenen, Ken, Maes, Wouter, Nicley, Shannon S., Raymakers, Jorne, Vanpoucke, Danny E. P.   +4 more
core   +1 more source

Single-grain dose-distribution measurements by optically stimulated luminescence using an integrated EMCCD-based system

, 2015
We report on the feasibility of assessing single-grain dose-distributions by using an EMCCD-based imaging system with complementary analysis software. Automated image-processing was successfully applied to compensate sample motion and for automated grain
Dornich, Kay, Greilich, Steffen, Gribenski, Natacha, Huot, Sébastian, Mittelstraß, Dirk, Preusser, Frank   +5 more
core   +1 more source

High-resolution remote thermography using luminescent low-dimensional tin-halide perovskites

, 2019
While metal-halide perovskites have recently revolutionized research in optoelectronics through a unique combination of performance and synthetic simplicity, their low-dimensional counterparts can further expand the field with hitherto unknown and ...
Benin, Bogdan M., Bodnarchuk, Maryna I., Cattaneo, Stefano, Dirin, Dmitry N., Hofer, Christoph, Kovalenko, Maksym V., Nazarenko, Olga, Shynkarenko, Yevhen, Yakunin, Sergii   +8 more
core   +1 more source

Synthesis, characterization, luminescence study and Judd-Ofelt analysis of highly luminescent Eu(III) complexes

Next Materials
This paper reports the synthesis of three red luminescent Eu(III) complexes, featuring dimethyl propanedioate as the primary ligand and 4-methyl-1,10-phenanthroline and 2,2′-bipyridine as coligands. The synthesized complexes were thoroughly characterized
Ritu Langyan
doaj   +1 more source

Method to predict the performance of luminescent road markings over a year

Results in Engineering
The performance of photoluminescent paints for road marking have been assessed from calibrated camera measurements during 18 months in outdoor conditions.
C. Villa, F. Eymond, P.L. Marquet, R. Bremond, E. Saint-Jacques   +4 more
doaj   +1 more source