Центральная Научная Библиотека УрО РАН

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   O-56


    On the modes of evaporation of Si and dopants in vacuum epitaxy procedures [Текст] / V. P. Kuznetsov, N. A. Alyabina, V. A. Bozhenkin, O. V. Belova, M. V. Kuznetsov // Semiconductors. - 2008. - Vol. 42, № 3. - С. 251-256. - Библиогр. : с. 256 (8 назв.)

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Рубрики: ХИМИЧЕСКИЕ НАУКИ

\\\\Expert2\\nbo\\Semiconductors (ФТП)\\2008, v.42, N 3, p.251-256.pdf
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   T 44


    The Production and Structure of Submicrometer Eu0.75Fe0.25O Films on InSb, Si, and GaAs Substrates / A. S. Borukhovich, A. I. Galyas, O. F. Demidenko, V. Dyakonov, V. A. Ketsko, N. I. Ignat’eva, N. N. Novitskii, A. I. Stognij, H. Szymczak, K. I. Yanushkevich // Inorganic Materials. - 2009. - Vol. 45, № 3. - P. 254-257 : il. - Bibliogr. : p. 256-257 (12 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ПОЛУПРОВОДНИКОВЫЕ МАТЕРИАЛЫ -- ФЕРРОМАГНЕТИКИ -- ПЛЕНКИ ТОНКИЕ
Аннотация: The conditions for fabrication and the crystal structure of the up-to-350-nm-thick Eu0.75Fe0.25O layers formed on InSb, Si, and GaAs substrates are studied. For the first time, 100–200 nm films with morphological surface inhomogeneities not exceeding 10 nm in size are produced by flash evaporation of targets close in composition to Eu0.75Fe0.25O onto InSb(001) substrates. The films exhibit ferromagnetic properties in combination with semiconductor properties at room temperatures

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   P 93


    Properties of the amorphous-nanocrystalline Gd2O3 powder prepared by pulsed electron beam evaporation / G. V. Ionov, S. Yu. Sokovnin, S. A. Uporov, M. G. Zuev // Physics of the Solid State. - 2013. - Vol. 55, № 6. - С. 1262-1271

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
НАНОПОРОШКИ -- ФАЗОВЫЕ ПРЕВРАЩЕНИЯ -- ФОТОЛЮМИНЕСЦЕНЦИЯ
Аннотация: An amorphous-nanocrystalline Gd2O3 powder with a specific surface area of 155 m2/g has been prepared using pulsed electron beam evaporation in vacuum. The nanopowder consists of 20- to 500-nm agglomerates formed by crystalline nanoparticles (3–12 nm in diameter) connected by amorphous-nanocrystalline strands. At room temperature, the Gd2O3 nanopowder exhibits a paramagnetic behavior. The phase transformations occurring in the powder have been investigated using differential scanning calorimetry and thermogravimetry (40–1400°C). The amorphous phase of the nanopowder is thermally stable up to a temperature of 1080°C. It has been found that the amorphous phase has an inhibitory effect on the temperature of the polymorphic transformation from the cubic phase into the monoclinic phase. It has been revealed that, compared with the microcrystalline powder, the Gd2O3 nanopowder is characterized by a complete quenching of photoluminescence.

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   Z 90

    Zuev, M. G.
    Research of nanopowders properties of new x-ray contrast substances and the phosphors produced by a method of pulsed electron beam evaporation / M. G. Zuev, V. G. Il`ves , S. Yu. Sokovnin // Известия высших учебных заведений. Физика. - 2012. - Т. 55, № 12-3. - С. 223-226

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Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ПУЧКИ ЭЛЕКТРОНОВ -- НАНОПОРОШКИ -- РЕНТГЕНОКОНТРАСТНЫЕ ПРЕПАРАТЫ
Аннотация: For the first time using pulsed electron evaporation were produced nanopowders of YTaO 4, LaTaO 4 X-ray contrast substances and phosphors Sr 2Y 8(SiO 4) 6O 2:Eu with oxyapatite structure with a specific surface to 184 m 2/g. Characteristics nanopowders were studied by methods of XRD, electronic microscopy of the high permission, electrongraphy, pulsed cathodeluminescence and photoluminescence. The analysis of a photoluminescence spectrum of phosphor has shown that the luminescence spectrum has changed in comparison with a micropowder of the same structure. The Eu 3+ luminescence spectrum containes smaller number of lines, than Eu 3+ spectrum of the micron size particles. Besides the shift of spectral lines was observed. There was also a reduction of intensity red and increase orange spectrum lines. After roasting on the air the nanophosphor spectrum of luminescence Eu 3+ has coincided with that one for microparticles. Thus, the effect of quantum restriction on position of power levels was observed, apparently. The size of particles of a phosphor has influenced its spectral structure. X-ray contrast properties nanopowders researches were tested in odontology, essential influence, especially in 3D geometry is established.

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