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  • 1
    Electronic Resource
    Electronic Resource
    Boron electrical activation in dual B+ + N+ + and B+ + Ar+ ion-implanted silicon (1996)
    Springer
    Applied physics 62 (1996), S. 355-358 
    Details
    ISSN: 1432-0630
    Keywords: 61.80.Jh ; 73.25
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Silicon wafers were implanted with 40 keV B+ ions and then with 50 keV N+ or 100 keV Ar+ ions to doses from 1.2 x 1014 to 1.2 x 1015 cm−2. The implanted samples were studied using the Hall effect and standard van der Pauw methods. The dependences of the sheet resistivity and the sheet concentration of charge carriers on the annealing temperature in the range from 700 to 1300 K were obtained. Models describing the influence of additional implantation of nitrogen and argon ions on the process of boron electrical activation during annealing are proposed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01594233
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Boron electrical activation in dual B+ + N+ and B+ + Ar+ ion-implanted silicon (1996)
    Springer
    Applied physics 62 (1996), S. 355-358 
    Details
    ISSN: 1432-0630
    Keywords: PACS: 61.80.Jh; 73.25
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract.  Silicon wafers were implanted with 40 keV B+ ions and then with 50 keV N+ or 100 keV Ar+ ions to doses from 1.2×1014 to 1.2×1015 cm-2. The implanted samples were studied using the Hall effect and standard van der Pauw methods. The dependences of the sheet resistivity and the sheet concentration of charge carriers on the annealing temperature in the range from 700 to 1300 K were obtained. Models describing the influence of additional implantation of nitrogen and argon ions on the process of boron electrical activation during annealing are proposed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01594233
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    On the redistribution of6Li + ions implanted into polypropylene foils (1996)
    Springer
    Applied physics 62 (1996), S. 359-367 
    Details
    ISSN: 1432-0630
    Keywords: 61.80.Th ; 61.40.Km
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract 6Li+ (150 keV) was implanted into thin polypropylene foils at fluences of 1 x 1013 to 1 x 1014 cm−2. Subsequent neutron depth profiling measurements of the Li distributions revealed considerable deviations from the expected ballistic range profiles. This Li redistribution was simulated by a numerical computer calculation. The best fit between measurements and simulations was obtained by assuming that (i) Li redistributes immediately after its ballistic slowing-down, (ii) the Li mobility is enhanced in the radiation-damaged polymer region, the local diffusion enhancement being controlled by the target's electronic damage, (iii) mobile Li is readily trapped at radiation-induced defects, their density being proportional to the target's electronic damage, (iv) these traps are saturable ones, and (v) Li migration is not restricted to the ion track region, but proceeds also through the neighboring unirradiated bulk, though with slower speed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01594234
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Influence of energetic ions on grafting to polyethylene (1996)
    Springer
    Applied physics 63 (1996), S. 441-446 
    Details
    ISSN: 1432-0630
    Keywords: PACS: 61.40; 61.80; 66.30; 81.60
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract.  Li salts of acrylic acid were grafted to poly- ethylene, PE. It is known that li is mobile in this material at room temperature, and hence can act as a probe for newly introduced defects. After irradiation of PE(Li) with 100 keV He+ ions at different fluences the Li depth distributions were measured by NDP. Changes in the Li distributions are observed which are ascribed to bonding at oxygen, the latter one preferentially penetrating into the PE via the irradiation-damaged sample surface. With increasing sample age, i.e. after exposure to ambient atmosphere for more than half a year, Li appears to lose its original mobility.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01571671
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Influence of energetic ions on grafting to polyethylene (1996)
    Springer
    Applied physics 63 (1996), S. 441-446 
    Details
    ISSN: 1432-0630
    Keywords: 61.40 ; 61.80 ; 66.30 ; 81.60
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Li salts of acrylic acid were grafted to polyethylene, PE. It is known that li is mobile in this material at room temperature, and hence can act as a probe for newly introduced defects. After irradiation of PE(Li) with 100 keV He+ ions at different fluences the Li depth distributions were measured by NDP. Changes in the Li distributions are observed which are ascribed to bonding at oxygen, the latter one preferentially penetrating into the PE via the irradiation-damaged sample surface. With increasing sample age, i.e. after exposure to ambient atmosphere for more than half a year, Li appears to lose its original mobility.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01571671
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Mechanism of conductivity in metal-polymer-metal structures (1999)
    Springer
    Applied physics 68 (1999), S. 479-482 
    Details
    ISSN: 1432-0630
    Keywords: PACS: 72.20.-i; 73.40.Rw; 73.60.Hy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003390050928
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Tomographic study of the three-dimensional distribution of a high-fluence implant in a polymer (1999)
    Springer
    Applied physics 68 (1999), S. 429-434 
    Details
    ISSN: 1432-0630
    Keywords: PACS: 61.72.Hh; 61.72.Ww; 61.80.Jh; 66.30.Jt; 79.20.Wc
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: 6 Li+ ions were implanted into PMMA at high flux up to fluences of 1×1015 cm-2 under angles of 0° to 70° towards the surface normal. The Li depth distributions were determined by means of neutron depth profiling, and compared with theoretical simulations. The three-dimensional Li distribution was reconstructed from the one-dimensional depth profiles by means of a tomographic technique. It turned out that the measured Li depth distributions can be described by a superposition of Gaussian and exponential functions. This points at considerable Li mobility during or after the ion implantation, with trapping in unsaturable traps in the ion-irradiated region which roughly follow the electronic energy transfer distribution. The Li redistribution is more pronounced along the track direction than transversely to it. The normalized Li distributions in various implantation directions were fed into our tomographic program to reconstruct the three-dimensional distribution of the deposited lithium. As expected, the lithium preferentially distributes along the ion tracks. This work is another hint that mobility of implanted ions in solids does not proceed isotropically, but is strongly influenced by the radiation-damage distributions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003390050918
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    GSAP: Fortran code for gamma-spectrum analysis
    Amsterdam : Elsevier
    Computer Physics Communications 60 (1990), S. 111-125 
    Details
    ISSN: 0010-4655
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Computer Science , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0010-4655(90)90081-B
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  • 9
    Electronic Resource
    Electronic Resource
    A Pascal program for the least-squares evaluation of standard RBS spectra
    Amsterdam : Elsevier
    Computer Physics Communications 72 (1992), S. 295-303 
    Details
    ISSN: 0010-4655
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Computer Science , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0010-4655(92)90156-S
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  • 10
    Electronic Resource
    Electronic Resource
    Influence of iodine implantation on the properties of polypropylene (1992)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 61 (1992), S. 1168-1170 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The implantation of iodine atoms into polypropylene and the related changes of substrate physicochemical properties have been studied by means of optical spectroscopy, by the Rutherford backscattering technique and by the measurement of substrate surface energy. Iodine atoms are not chemically bonded in the polymer. During the ion implantation, carbonyl groups and conjugated double bonds are created in the polymer and its surface polarity is increased. The latter effect is more pronounced for the implantation of heavier I+ ions than for F+ ion implantation. After ion implantation, the electrical conductivity of the polypropylene is increased by eight orders of magnitude.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.107635
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