Results 11 to 20 of about 74 (74)

THE STUDY OF FLUORESCENT PROPERTIES OF CALCIUM STANNATE CASNO ACTIVATED WITH RARE EARTH METALS

Вестник Северо-Кавказского федерального университета, 2022
A series of prototypes CaSnO3, activated with Yb3+, Er3+, Ho3+, Tm3+ ions, synthesized by solid-phase method. X-ray diffraction analysis of the samples showed the presence of BaSnO3 phase with unit cell parameters characteristic of the orthorhombic ...
Ul'ana Mar'ina, Viktor Vorob'ev
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ПОЛУЧЕНИЕ УГЛЕРОДНЫХ ТОЧЕК В МАТРИЦЕ ПОЛИВИНИЛОВОГО СПИРТА И ИССЛЕДОВАНИЕ ИХ СВОЙСТВ

Ползуновский вестник, 2023
В работе приведены результаты исследования оптических и структурных свойств раствора углеродных точек, синтезированных из лимонной кислоты и этилендиамина гидротермальным методом.
Марфа Никитична Егорова, Ирина Ивановна Куркина, Афанасий Алексеевич Дьяконов   +2 more
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THE STUDY OF LUMINESCENT PROPERTIES OF NANOSIZED ZnO SYNTHESIZED BY SOL-GEL TECHNIQUE

Вестник Северо-Кавказского федерального университета, 2022
Luminescent properties of nanosized zinc oxide synthesized by sol-gel technique were investigated. Type and energy level position of the intrinsic defects involved in luminescence and photoconductivity processes were determined.
Dmitri Sergeevich Vakalov, Dmitri Petrovich Valukhov, Eugenie Alekseevich Bondarenko, Ul'jana Andreevna Maryina   +3 more
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RESEARCH OF THE INFLUENCE OF IMPURITIES DYSPROSIUM AND THULIUM ON THE LUMINESCENCE OF SOLID SOLUTIONS Y_{1– x}Yb _x Al₃(BO₃)₄

Вестник Северо-Кавказского федерального университета, 2022
Has established the dependence of the intensity of IR-luminescence of polydisperce solid solutions Y1–xYbxAl3(BO3)4 on the ion concentration of dysprosium and thulium.
Sergey Vladimirovich Kostyukov
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K2SO4 кристалындағы ақаулардың қалыптасуына екі валентті Pb2+ қоспасының əсері

Қарағанды университетінің хабаршысы. Физика сериясы, 2016
Мақалада сəулелендірілген K2SO4 сульфаттағы ақаулардың қалыптасуына екі валентті Pb2+ қоспаның əсері зерттелген. Рентген сəулесімен қоздырылған K2SO4–Pb кристалындағы ақаудың қалыптасу механизмі термобелсендірілген спектроскопия жəне ...
D. Soldathan, Z.K. Baimukhanov
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Intensification of sol-gel synthesis of Mn-containing MgO-Al₂O₃-ZrO₂-SiO₂ system materials

Научно-технический вестник информационных технологий, механики и оптики
Glass and glass-crystalline MgO-Al2O3-SiO2 system materials have many practical applications including their use as luminophores. To lower the synthesis temperature of such materials is an actual task.
S. K. Evstropiev, V. L. Stolyarova, D. V. Bulyga, A. S. Saratovskii, N. B. Knyazyan, G. G. Manukyan   +5 more
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FEATURES OF SYNTHESIS THE PEROVSKITE-LIKE OF STRUCTURES LIKE MSnO₃(M = Ba, Sr, Ca) AND RESEARCH OF THEIR LUMINESCENT PROPERTIES

Вестник Северо-Кавказского федерального университета, 2022
The review of the existing methods of synthesis of structures of type MSnO3 (M = Ba, Sr, Ca) is made. Formation process the phases of perovskit BaSnO3, SrSnO3, CaSnO3 received by solid-phase synthesis is experimentally investigated. Features of synthesis
Ul'ana Mar'ina, Viktor Vorob'ev
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Structural and spectral properties of YAG:Nd, YAG:Ce and YAG:Yb nanocrystalline powders synthesized via modified Pechini method

Научно-технический вестник информационных технологий, механики и оптики
Synthesis of nanocrystalline yttrium-aluminum garnet doped with neodymium was performed via modified Pechini methods. Evolution of material during synthesis was studied using differential thermal analysis; the structure and morphology of synthesized ...
A. Moussaoui, D. V. Bulyga, A. I. Ignatiev, S. K. Evstropiev, N. V. Nikonorov   +4 more
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THE STUDY OF THE LUMINESCENCE PROPERTIES OF Y_{0.85‑ x}Yb_0.15Er _x Al₃(BO₃)₄

Вестник Северо-Кавказского федерального университета, 2022
Has established the dependence of the intensity of Stokes IR-luminescence of polydisperce solid solutions Y0.85‑xYb0.15ErxAl3(BO3)4 at 800–2000 nm under laser excitation 940–980 nm from the composition.
Sergey Vladimirovich Kostyukov, Viktor Andreevich Vorobyev   +1 more
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Spectral-luminescent properties of silver clusters Ag_1-5 in the ion-exchange layer of silicate glass

Научно-технический вестник информационных технологий, механики и оптики
This work demonstrates for the first time the selectivity of silver molecular clusters luminescence in silicate glass formed by the ion exchange method from a salt melt containing 0.1 mol.% silver nitrate (AgNO3) and 99.9 mol.% sodium nitrate (NaNO3 ...
V. V. Pesnyakov, D. V. Marasanov, S. K. Evstropiev, N. V. Nikonorov   +3 more
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