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    Wyświetlanie 1-4 z 4
    Tytuł:
    Effect of Thermal Annealing on Optical Properties of Implanted Gaas
    Autorzy:
    Kulik, M.
    Komarov, F. F.
    Mączka, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/2011008.pdf
    Data publikacji:
    1999-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    07.60.Fs
    61.72.Vv
    78.20.-e
    Opis:
    GaAs samples doped with indium atoms by ion implantation and thermal annealed were studied using a channelling method, Rutherford backscattering, and an ellipsometry. From these measurements it was observed that the layer implanted with 3×10$\text{}^{16}$ cm$\text{}^{-2}$ indium dose was totally damaged and its optical properties, namely a refraction index n and an extinction coefficient k, corresponded to the amorphous material. Subsequent isobaric heating of the implanted samples resulted in recovery of the crystalline structures with simultaneous change of the n and k index values.
    Źródło:
    Acta Physica Polonica A; 1999, 96, 1; 131-135
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Chemical Composition of Native Oxide Layers on $In^{+}$ Implanted and Thermally Annealed GaAs
    Autorzy:
    Kulik, M.
    Kołodyńska, D.
    Żuk, J.
    Komarov, F.
    Filiks, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1400486.pdf
    Data publikacji:
    2013-05
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.72.uj
    79.60.-i
    82.80.Yc
    Opis:
    Semi-insulating GaAs wafers have been implanted with 250 keV In^{+} ions at a fluence of $3 \times 10^{16} cm^{-2}$. The samples prepared in this way were subsequently annealed at a temperature of 600°C or 800°C for 2 h. Thicknesses of the native oxide layers on implanted GaAs after samples storage in air were evaluated using the Rutherford backscattering spectrometry with the nuclear reaction $O^{16}(α,α)O^{16}$ method. The chemical composition of native oxide layers on $In^{+}$ implanted and annealed GaAs has been studied using X-ray photoelectron spectroscopy. $As_{2}O_{3}$, $As_{2}O_{5}$, $Ga_{2}O_{3}$, $GaAs$, $InAs$ and $InAsO_4$ compounds were detected in these layers.
    Źródło:
    Acta Physica Polonica A; 2013, 123, 5; 943-947
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Nanocrystal- and Dislocation-Related Luminescence in~Si Matrix with InAs Nanocrystals
    Autorzy:
    Komarov, F.
    Vlasukova, L.
    Milchanin, O.
    Mudryi, A.
    Zuk, J.
    Pyszniak, K.
    Kulik, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1504152.pdf
    Data publikacji:
    2011-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    78.66.-w
    78.60.Fi
    Opis:
    We have studied the influence of ion implantation and post-implantation annealing regimes on the structural and optical properties of silicon matrix with ion-beam synthesized InAs nanocrystals. (100) Si wafers were implanted at 25 and 500°C, subsequently with high fluences of As and In ions. After implantation the samples were processed by furnace and rapid thermal annealing at 900, 950 and 1050°C. A part of the samples implanted at 25°C was additionally exposed to $H_2^{+}$ ions (100 keV, 1.2 × $10^{16} cm^{-2}$ in terms of atomic hydrogen). This procedure was performed to obtain an internal getter. In order to characterize the implanted samples transmission electron microscopy and low-temperature photoluminescence techniques were employed. It was demonstrated that by introducing getter, varying the ion implantation temperature, ion fluences and post-implantation annealing duration, and temperature it is possible to form InAs nanocrystals in the range of sizes of 2-80 nm and create various concentration and distribution of different types of secondary defects. The last ones cause in turn the appearance in photoluminescence spectra dislocation-related D1, D2 and D4 lines at 0.807, 0.870 and 0.997 eV, respectively.
    Źródło:
    Acta Physica Polonica A; 2011, 120, 1; 204-207
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ion Beam Synthesis of InAs Nanocrystals in Si: Influence of Thin Surface Oxide Layers
    Autorzy:
    Komarov, F.
    Vlasukova, L.
    Milchanin, O.
    Greben, M.
    Komarov, A.
    Mudryi, A.
    Wesch, W.
    Wendler, E.
    Zuk, J.
    Kulik, M.
    Ismailova, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/1400427.pdf
    Data publikacji:
    2013-05
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.80.-x
    61.72.Ff
    63.20.-e
    78.66.-w
    Opis:
    Nanosized crystallites have been synthesized in the Si and $SiO_2//Si$ structures by means of As (170 keV, $3.2 × 10^{16} cm^{-2}$) and In (250 keV, $2.8 × 10^{16} cm^{-2}$) implantation at 25C and 500C and subsequent annealing at 1050C for 3 min. The Rutherford backscattering, transmission electron microscopy, and photoluminescence techniques were used to analyse the impurity distribution as well as the structural and optical characteristics of the implanted layers. It was found that oxidation of samples before thermal treatment significantly reduced the As and In losses. A broad band in the region of 1.2-1.5 μm was detected in the photoluminescence spectra. The highest photoluminescence yield for the samples after "hot" implantation and annealing was obtained. Anodic oxidation of the implanted samples before annealing results in the additional increase of photoluminescence yield.
    Źródło:
    Acta Physica Polonica A; 2013, 123, 5; 809-812
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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