Výsledky vyhledávání - "Leonid Dolgov"

Akademický článek

Stable Aqueous Colloidal Solutions of Nd3+: LaF3 Nanoparticles, Promising for Luminescent Bioimaging in the Near-Infrared Spectral Range

Autor: Alexandr Popov, Elena Orlovskaya, Artem Shaidulin, Ekaterina Vagapova, Elena Timofeeva, Leonid Dolgov, Lyudmila Iskhakova, Oleg Uvarov, Grigoriy Novikov, Mihkel Rähn, Aile Tamm, Alexander Vanetsev, Stanislav Fedorenko, Svetlana Eliseeva, Stephane Petoud, Yurii Orlovskii

Publikováno v: Nanomaterials, Vol 11, Iss 11, p 2847 (2021)

Two series of stable aqueous colloidal solutions of Nd3+: LaF3 single-phase well-crystallized nanoparticles (NPs), possessing a fluorcerite structure with different activator concentrations in each series, were synthesized. A hydrothermal method invo

Externí odkaz: https://doaj.org/article/64c10248bbcc438e807de8c7ac29dcc5

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Stable Aqueous Colloidal Solutions of Nd3+: LaF3 Nanoparticles, Promising for Luminescent Bioimaging in the Near-Infrared Spectral Range

Autor: Aile Tamm, Svetlana V. Eliseeva, Mihkel Rähn, Ekaterina Vagapova, Oleg V. Uvarov, Yurii Orlovskii, Elena N. Timofeeva, Alexandr G. Popov, Stéphane Petoud, Alexander Vanetsev, Grigoriy Novikov, Artem Shaidulin, Leonid Dolgov, S.G. Fedorenko, E.O. Orlovskaya, L. D. Iskhakova

Publikováno v: Nanomaterials
Nanomaterials, MDPI, 2021, 11 (11), pp.2847. ⟨10.3390/nano11112847⟩
Nanomaterials, Vol 11, Iss 2847, p 2847 (2021)
Volume 11
Issue 11

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85eb7b9a2db05a3f097903ebf4431f2e
https://hal.archives-ouvertes.fr/hal-03409292/document

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Efficient Luminescence Enhancement of Mg2TiO4:Mn4+ Red Phosphor by Incorporating Plasmonic Ag@SiO2 Nanoparticles

Autor: Miroslav D. Dramićanin, Jianxin Shi, Leonid Dolgov, Junyu Hong, Xiaohui Li, Vesna Djordjevic, Lei Zhou, Junhao Li, Mingmei Wu

Publikováno v: ACS Applied Materials and Interfaces

One of prospective ways for boosting efficiency of luminescent materials is their combination with noble metal nanoparticles. Collective, so-called plasmon, oscillations of surface electrons in a nanoparticle can resonantly interact with incident or

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3af3445d966f630339501f3e3039eec5
https://doi.org/10.1021/acsami.9b05781

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Silver nanoparticles with reduced graphene oxide for surface-enhanced vibrational spectroscopy of DNA constituents

Autor: Vladyslav Kavelin, Olena Fesenko, Andrii Yaremkevych, Serhii Kovalchuk, Siim Heinsalu, Aleksei Treshchalov, Leonid Dolgov

Publikováno v: Applied Nanoscience. 9:1075-1083

Composite of silver nanoparticles with reduced graphene oxide flakes is proposed for surface enhanced vibrational spectroscopy, particularly for detection of adenine and thymine as constituents of deoxyribonucleic acid. Composite was formed by origin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eac5c31092af4399c68155385e605e82
https://doi.org/10.1007/s13204-018-0924-4

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Layered Structure Produced Nonconcentration Quenching in a Novel Eu3+-Doped Phosphor

Autor: Jianxin Shi, Mingmei Wu, Junhao Li, Yiqin Xu, Yuying Meng, Jing Yan, Jianbang Zhou, Leonid Dolgov, Yangfei Cao, Qiongyun Liang

Publikováno v: ACS Applied Materials & Interfaces. 10:41479-41486

Energy migration (energy transfer among identical luminescence centers) is always thought to be related to the concentration quenching in luminescence materials. However, the novel Eu3+-doped Ba6Gd2Ti4O17 phosphor seems to be an exception. In the ser

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::377af746cfa3ae5815caaf56dde2b28b
https://doi.org/10.1021/acsami.8b13759

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Modeling of luminescence-based oxygen sensing by redox-switched energy transfer in nanocrystalline TiO2:Sm3+

Autor: Kathriin Utt, Marko Eltermann, Raivo Jaaniso, Leonid Dolgov, Artjom Berholts, Valter Kiisk, Sven Lange

Publikováno v: Sensors and Actuators B: Chemical. 265:556-564

It is shown that the luminescence of Sm3+ ions, which were doped into anatase nanopowder, is highly sensitive to the presence of oxygen gas. The luminescence was effectively excited through TiO2 band-to-band absorption and exhibited oxygen sensitivit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::abf8b8d365316c7d6d87675331110e31
https://doi.org/10.1016/j.snb.2018.03.034

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Luminescence enhancement and energy transfers of Ce3+ and Sm3+ in CaSrSiO4 phosphor

Autor: Mingmei Wu, Wasim Ullah Khan, Qiongyun Liang, Naveed Ur Rahman, Lei Zhou, Xiaohui Li, Jing Yan, Jianxin Shi, Shahid Ullah Khan, Leonid Dolgov

Publikováno v: Journal of Materials Chemistry C. 6:7612-7618

Orthosilicate phosphors with desirable properties are used as commercial materials in the fields of lighting and display. Herein, a series of Ce3+ and Sm3+ singly- or doubly-doped CaSrSiO4 phosphors with charge compensations by co-doping of Na+ ions

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::09fc1423713dd508b5486365dcd80d11
https://doi.org/10.1039/c8tc02143k

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Mn2+and Mn4+red phosphors: synthesis, luminescence and applications in WLEDs. A review

Autor: Mingmei Wu, Qiang Zhou, Zhengliang Wang, Lei Zhou, Jianxin Shi, Mikhail G. Brik, Alok Mani Srivastava, Miroslav D. Dramićanin, Leonid Dolgov

Publikováno v: Journal of Materials Chemistry C. 6:2652-2671

Transition-metal activated phosphors are an important family of luminescent materials that can produce white light with an outstanding color rendering index and correlated color temperature for use in light-emitting diodes. In recent years, work in t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f4df156ce78a38e6f29bdbc6046da6ea
https://doi.org/10.1039/c8tc00251g

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Combined spectroscopic and DFT studies of local defect structures in beta-tricalcium phosphate doped with Nd(III)

Autor: E.A. Vagapova, Laurits Puust, E. Strugovshchikov, L. D. Iskhakova, A. Pishtshev, Leonid Dolgov, E.O. Orlovskaya, Yu.V. Orlovskii, Alexander Vanetsev, Uno Mäeorg

Publikováno v: Journal of Alloys and Compounds. 877:160305

We investigated the distribution of the Nd3+ impurity centers over five Ca2+ positions in the β-Ca3(PO4)2 lattice (space group R3c) using low-temperature site-selective laser spectroscopy and fluorescence kinetics measured by double spectral selecti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a51ab2f4da596b9e9d127e4aa9a7f007
https://doi.org/10.1016/j.jallcom.2021.160305

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