Bibliografías temáticas / 5d-4f luminescence

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Literatura académica sobre el tema "5d-4f luminescence"

Autor: Grafiati
Publicado: 11 de marzo de 2023

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Artículos de revistas sobre el tema "5d-4f luminescence"

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Trofimova E. S., Pustovarov V. A., and Zatsepin A. F. "Defects and energy transfer in Sr-=SUB=-9-=/SUB=-Lu(PO-=SUB=-4-=/SUB=-)-=SUB=-7-=/SUB=-, doped with ions Pr-=SUP=-3+-=/SUP=-." Optics and Spectroscopy 130, no. 10 (2022): 1228. http://dx.doi.org/10.21883/eos.2022.10.54858.3624-22.

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Luminescent properties of Sr9Lu(PO4)7 crystalline powders doped with Pr3+ ions upon excitation in the ultraviolet region of the spectrum are considered. in the temperature range 5-320 K, are considered.. In the photoluminescence spectra, an intense glow corresponding to radiative interconfigurational 5d->4f-electronic transitions, weak narrow lines of intra-configuration 4f->4f-transitions, and also the emission of two types of crystal structure defects, are observed, Under pulsed electronic excitation, the temporal characteristics of emission associated with an impurity center a
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2

Zych, Eugeniusz, Paulina Bolek, Małgorzata Sójka, et al. "(Invited) Combining the 5d→4f and 4f→4f Luminescence of Lanthanides for High-Quality Broad-Range Luminescence Thermometry." ECS Meeting Abstracts MA2022-02, no. 51 (2022): 1963. http://dx.doi.org/10.1149/ma2022-02511963mtgabs.

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Accurate and sensitive remote temperature measurement is required in a growing number of existing and emerging applications. As the technology advances and nanotechnology enters still new fields, the size of objects whose temperature needs to be controlled gets smaller and the non-contact temperature reading is the only reasonable approach. Luminescence thermometry is believed to become the technology of choice for such purposes, as it is resistant to disturbances by an electromagnetic field and the sensitivity and accuracy of measurements may be tuned for the specific requirements. Thus, whet
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3

Aleksanyan, Eduard, Vachagan Harutunyan, Radik Kostanyan, et al. "5d–4f luminescence of Er3+ in YAG:Er3+." Optical Materials 31, no. 6 (2009): 1038–41. http://dx.doi.org/10.1016/j.optmat.2008.11.017.

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MAKHOV, V. N., N. YU KIRIKOVA, N. M. KHAIDUKOV, et al. "VUV SPECTROSCOPY OF CRYSTALLINE EMITTERS BASED ON 5d–4f TRANSITIONS IN RARE EARTH IONS." Surface Review and Letters 09, no. 01 (2002): 621–26. http://dx.doi.org/10.1142/s0218625x02002919.

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The spectroscopic properties of several fluoride crystals ( LiYF 4, KYF 4, K 2 YF 5, KLiYF 5, CsY 2 F 7, SrF 2) doped with Nd 3+, Er 3+ or Tm 3+ are analyzed from the viewpoint of their possible applications as active media for VUV solid state lasers. It has been found that in many crystals there exists very efficient nonradiative relaxation from higher-lying 5d states to the lowest 5d level responsible for the spin-forbidden luminescence. In fact, the energy level diagram of 5d–4f transitions for these two ions represents a typical four-level laser scheme with a considerably larger Stokes shi
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5

Kochan, Orest, Yaroslav Chornodolskyy, Jarosław Selech, et al. "Energy Structure and Luminescence of CeF3 Crystals." Materials 14, no. 15 (2021): 4243. http://dx.doi.org/10.3390/ma14154243.

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The results of the calculation of the energy band structure and luminescent research of CeF3 crystals are presented. The existence of two 5d1 and 5d2 subbands of the conduction band genetically derived from 5d states of Ce3+ ions with different effective electron masses of 4.9 me and 0.9 me, respectively, is revealed. The large electron effective mass in the 5d1 subband facilitates the localization of electronic excitations forming the 4f-5d cerium Frenkel self-trapped excitons responsible for the CeF3 luminescence. The structure of the excitation spectra of the exciton luminescence peaked at
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6

Su, Yiguo, Mengqing Liu, Dan Han, Lv Li, Tingting Wang, and Xiaojing Wang. "Ce3+ and Ln3+ (Ln = Dy, Eu, Sm, Tb) Codoped SrF2 Nanoparticles: Synthesis and Multicolor Light Emission." Journal of Nanoscience and Nanotechnology 16, no. 4 (2016): 3956–60. http://dx.doi.org/10.1166/jnn.2016.11861.

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For optically active Ln3+ ions, fluoride is a very good luminescent substrate that has been used in the field of lasers, solid-phase optical transmitters, optical communications, up/down conversion. This work reports a systematic study on bridging between structure and tunable luminescence for SrF2:Ce3+/Ln3+ (Ln = Dy, Eu, Sm, Tb) nanoparticles. Regardless of the dopant level, all nanocrystals crystallized in a single cubic phase with the diameter of ∼20–30 nm. It was found that SrF2:Ce3+ exhibited intense ultraviolet emission under 288 nm excitation which can be attributed to the typical 4f-5d
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7

Arana, L. Ruiz, P. Lindenberg, H. Said, et al. "Monitoring the mechanism of formation of [Ce(1,10-phenanthroline)2(NO3)3] by in situ luminescence analysis of 5d–4f electronic transitions." RSC Advances 7, no. 83 (2017): 52794–800. http://dx.doi.org/10.1039/c7ra07488c.

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The mechanism of formation of emitting complexes is efficiently elucidated by in situ luminescence measurements of 5d–4f electronic transitions from the early stages of the reaction until the final product crystallization.
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8

Guerbous, L., and O. Krachni. "The 4f-5d luminescence transitions in cerium-doped LuF3." Journal of Modern Optics 53, no. 14 (2006): 2043–53. http://dx.doi.org/10.1080/09500340600792424.

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9

Makhov, V. N., S. Kh Batygov, L. N. Dmitruk, M. Kirm, G. Stryganyuk, and G. Zimmerer. "VUV 5d – 4f luminescence of Gd3+ doped into CaF2." physica status solidi (c) 4, no. 3 (2007): 881–84. http://dx.doi.org/10.1002/pssc.200673766.

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10

Fu, H. Y., Y. K. Guo, Y. Li, et al. "Preparation and luminescence properties of SrWO4 phosphors with Ce3+ doping." Journal of Ovonic Research 17, no. 2 (2021): 157–64. http://dx.doi.org/10.15251/jor.2021.172.157.

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Efficient UV excitable Ce3+ ion activated SrWO4 phosphors, which were successfully prepared through a hydrothermal method. X-ray diffraction, field-emission scanning electron microscopy, CIE color coordinates and photoluminescence were used to characterize the samples. The effect of adding pH solution on the luminescent properties of SrWO4: Ce3+ was studied, the luminescence material SrWO4:Ce3+ exhibits intense blue photoluminescence (PL) with the maximum peak located at 306 nm, which is ascribed to the 4f→5d transition of Ce3+, All these results indicate that the SrWO4: Ce3+ phosphor holds tr
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Tesis sobre el tema "5d-4f luminescence"

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Asami, Kazuki. "Lanthanoid Activated Phosphors with 5d-4f Visible Luminescence for Lighting Applications: Development and Characterization Based on Control of Electronic Structure and Ligand Field." Kyoto University, 2019. http://hdl.handle.net/2433/242726.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(人間・環境学)<br>甲第21849号<br>人博第878号<br>新制||人||210(附属図書館)<br>2018||人博||878(吉田南総合図書館)<br>京都大学大学院人間・環境学研究科相関環境学専攻<br>(主査)教授 田部 勢津久, 教授 内本 喜晴, 教授 加藤 立久, 教授 吉田 寿雄<br>学位規則第4条第1項該当
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2

Trevisani, Mattia. "Fast 5d-4f luminescence of Pr3+ in new wide band-gap host lattices for applications in medical diagnostics." Doctoral thesis, 2014. http://hdl.handle.net/11562/688759.

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Il lavoro presentato in questa tesi si pone l'obiettivo di studiare le proprietà ottiche e spettroscopiche di nuovi materiali luminescenti destinati ad applicazioni quali scintillatori veloci per moderne tecniche di diagnostica medica. Specificatamente la nostra attenzione è stata rivolta alla sintesi di materiali inorganici ad ampio band-gap attivati con lo ione trivalente praseodimio (Pr3+) il quale, in seguito ad opportuna eccitazione, può dare luogo ad emissioni radiative veloci (15-25 ns) potenzialmente utili nella realizzazione di scintillatori. Le prestazioni dei scintillatori sono de
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Capítulos de libros sobre el tema "5d-4f luminescence"

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Chernov, S. P., L. I. Devyatkova, O. N. Ivanova, et al. "5d 1 4f N-1 -4TN Absorption and Luminescence of Ce3+, Pr3+, and Nd3+ Ions in BaY2F8 Single Crystals." In April 16. De Gruyter, 1985. http://dx.doi.org/10.1515/9783112501085-057.

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Actas de conferencias sobre el tema "5d-4f luminescence"

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Fujimoto, Yutaka, Takayuki Yanagida, Yoshisuke Futami, Kentaro Fukuda, and Masanori Koshimizu. "Basic Properties of Eu2+5d-4f Luminescence in SiO2Glass Matrix." In Proceedings of the 12th Asia Pacific Physics Conference (APPC12). Journal of the Physical Society of Japan, 2014. http://dx.doi.org/10.7566/jpscp.1.014024.

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Trofimova, E. S., V. A. Pustovarov, and Q. Shi. "Fast 5d-4f luminescence in Sr9RE(PO4)7 (RE = Sc, Lu) complex phosphates doped with Pr3+ ions." In PHYSICS, TECHNOLOGIES AND INNOVATION (PTI-2019): Proceedings of the VI International Young Researchers’ Conference. AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5134329.

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