Results 1 to 10 of about 13,587 (165)
Luminescence Spectroscopy and Origin of Luminescence Centers in Bi-Doped Materials [PDF]
Crystals, 2020 Bi-doped compounds recently became the subject of an extensive research due to their possible applications as scintillator and phosphor materials. The oxides co-doped with Bi3+ and trivalent rare-earth ions were proposed as prospective phosphors for ...
Aleksei Krasnikov +4 more
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Luminescence of brown CVD diamond: 468 nm luminescence center [PDF]
Diamond and Related Materials, 2021 Abstract Detailed study of the luminescence of multiple brown CVD diamonds was performed. It has been found that the well-known optical center with zero-phonon line at 468 nm is a characteristic of brown color. It has been found that the defects responsible for 468 nm center are located within brown striations suggesting close relation of the 468 nm ...
Zaitsev, A. M. +6 more
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Luminescence of insulator layers on silicon excited by electrons
Physics of Complex Systems, 2021 We present a comparative analysis of cathodoluminescence (CL) and electroluminescence (EL) spectra measured on Si–SiO2 and Si–Ta2O5 structures with various thicknesses of insulator layers.
Александр Петрович Барабан +1 more
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The Effect of Instability of KCl:Na Single Crystals
Crystals, 2023 For the first time, the stability of KCl single crystals doped with sodium impurity ions was analyzed via the optical absorption and luminescence methods.
Kuanyshbek Shunkeyev +4 more
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Advanced Photonics Research, 2021 Lanthanide ions act as excellent luminescence centers and good charge carrier traps. By selecting proper lanthanide ions, persistent phosphors with the desired luminescent color can be developed.
Jumpei Ueda +4 more
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Near Infrared Fluorescent Nanostructure Design for Organic/Inorganic Hybrid System
Biomedicines, 2021 Near infrared (NIR) light offers high transparency in biological tissue. Recent advances in NIR fluorophores including organic dyes and lanthanide-doped inorganic nanoparticles have realized the effective use of the NIR optical window for in vivo ...
Kyohei Okubo +2 more
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Optical center of a luminescent solar concentrator
Optics Letters, 2022 This Letter introduces a novel, to the best of our knowledge, approach to estimate the power conversion efficiency (PCE) of a square luminescent solar concentrator (LSC) by point excitations on the “optical centers.” Predicted by theoretical calculations, photoluminescence emissions from these optical centers experience almost the same average optical ...
Jingjian Zhou, Jing Huang, Ilya Sychugov
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The features of deformation-stimulated RbI luminescence
Eurasian Journal of Physics and Functional Materials, 2021 This paper studies deformation-stimulated features of radiative relaxation of self-trapped excitons and recombination assembly of exciton-like luminescence in RbI crystal. Methods of research were luminescence and thermal activation spectroscopy.
L. N. Myasnikova +2 more
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A platform for blue-luminescent carbon-centered radicals
Nature Communications, 2022 Abstract Organic radicals, which have unique doublet spin-configuration, provide an alternative method to overcome the efficiency limitation of organic light-emitting diodes (OLEDs) based on conventional fluorescent organic molecules. Further, they have made great breakthroughs in deep-red and near-infrared OLEDs.
Xin Li +4 more
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Modern Electronic Materials, 2015 Using step-by-step removal of silicon layers, in which dislocation-related photoluminescence is observed after Si+ (100 keV, 1·1015 cm−2) ion implantation followed by high-temperature annealing in a chlorine containing atmosphere, it has been found that ...
Sergeyi N. Nagornykh +9 more
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