Filters

2009 - 200922010 - 20126

More filters

20198
Reset filters

Settings

End date: 2012 × Type: ConferenceObject ×

Search Results

Now showing 1 - 8 of 8
  • Thumbnail Image
    Item
  • Thumbnail Image
    Item
    Transparent conductive oxides for coating applications
    (Saarbrücke : Leibniz-Institut für Neue Materialien, 2009) Quilitz, Mario; Oliveira, Peter W. de; Heusing, Sabine; Veith, Michael
    Transparent, conductive oxides (TCOs) applied as coatings find multiple applications in various areas such as flat panel display setups, as electrodes in touch-screen panels, electrochromic devices, solar cells and in architectural applications for example as IR reflectors. The favored material in the class of TCOs is still ITO - Sn-doped In2O3 - due to its unique combination of high transparency and electrical conductivity. Though already very good, the potential of the ITO coatings with regard to their conductivity leaves some space for future improvements. Also ITO as a material has some serious drawbacks, such as limited availability and high costs. this work presents some stratgies to overcome these obstacles. One way to enhance the conductivities of alternative materials is to use carbon nanotubes as a dopant. This strategy was tested for ATO (Antimony-doped Tin Oxide), Titan dioxide and AZO (Aluminium-doped Zinc oxide). The results for these materials are presented. In coatings of ITO on glass or polymeric foils usually silica-based binders are used. They have the disadvantage to reduce the contact between the highly conducting grains and thus reduce overall conductivity in the composite. The matrix between the nanoparticles can be improved by several measures. Experiments with relevance in this direction are discussed. A third strategy aims at the reduction of costs in the process of ITO fabrication. Here one way to go is to use an electrochemical synthesis method. Results of the line of development are presented. Other strategies comprise the suitable processing of materials with a lower intrinsic conductivity or the search for materials with high intrinsic conductivity close to that of ITO. Exmples are presented and discussed.
  • Thumbnail Image
    Item
    Large area production of optical coatings and devices by the sol-gel process
    (Saarbrücke : Leibniz-Institut für Neue Materialien, 2009) Oliveira, Peter; Quilitz, Mario; Heusing, Sabine; Lin, Hechun; Veith, Michael
    [no abstract available]
  • Thumbnail Image
    Item
    Crystallization of Fe82Si2B16 and Fe82Si4B14 metallic glasses upon isothermal and non-isothermal annealing
    (Les Ulis : EDP Sciences, 2011) Shpak, A.P.; Il’inskii, A.G.; Marunyak, A.V.; Slukhovskyy, O.I.; Lepeeva, Yu. V.; Dekhtyar, A.; Kaban, I.; Mattern, N.; Eckert, J.
    Crystallization of Fe82Si2B16 and Fe82Si4B14 metallic glasses upon heat treatment has been studied. The amorphous ribbons have been isothermally annealed at different temperatures (673, 693, 733 and 743 K) and for various times (from 15 min to 78 hours). Phase compositions and the sequence of their appearance in dependence on the annealing temperature and time have been established.
  • Thumbnail Image
    Item
    ISense: A portable ultracold-atom-based gravimeter
    (Amsterdam : Elsevier, 2011) de Angelis, M.; Angonin, M.C.; Beaufils, Q.; Becker, Ch.; Bertoldi, A.; Bongs, K.; Bourdel, T.; Bouyer, P.; Boyer, V.; Dörscher, S.; Duncker, H.; Ertmer, W.; Fernholz, T.; Fromhold, T.M.; Herr, W.; Krüger, P.; Kürbis, Ch.; Mellor, C.J.; Pereira Dos Santos, F.; Peters, A.; Poli, N.; Popp, M.; Prevedelli, M.; Rasel, E.M.; Rudolph, J.; Schreck, F.; Sengstock, K.; Sorrentino, F.; Stellmer, S.; Tino, G.M.; Valenzuela, T.; Wendrich, T.J.; Wicht, A.; Windpassinger, P.; Wolf, P.
    We present iSense, a recently initiated FET project aiming to use Information and Communication Technologies (ICT) to develop a platform for portable quantum sensors based on cold atoms. A prototype of backpack-size highprecision force sensor will be built to demonstrate the concept.
  • Thumbnail Image
    Item
    Licensing of scientific audiovisual media in Germany
    (2012) Brehm, Elke
    TIB has set up a competence center for non-textual material with the goal to collect, archive and present scientific audiovisual media among other non-textual material to its users via its portals. The acquisition of the necessary rights for the audiovisual media which enter into TIB´s collection profile is complex. The market for scientific information is international and does not end at national borders. Thus the scientific audiovisual media which TIB licenses are produced in Germany but also in other countries. Challenges are encountered regarding the German national law and, when collaborating with licensors from other countries, with other national laws. This paper aims at describing the legal framework within which TIB has to build up services and the challenges which TIB encounters when licensing electronic audiovisual media in Germany with a special focus on currently valid and new developments in European and German legal deposit and copyright law.
  • Thumbnail Image
    Item
    Open Access activities of the German National Library of Science and Technology : SCOAP3-DH and Arxiv-DH
    (Hannover : Technische Informationsbibliothek (TIB), 2011) Rosemann, Uwe; Brehm, Elke
    [no abstract available]
  • Thumbnail Image
    Item
    Working with focus groups as a Post-Occupancy Evaluation (POE) to support a relaunch of the library building of the German National Library of Science and Technology/University Library Hannover (TIB/UB)
    (2012) Franzkowiak, Anette
    The TIB/UB (German National Library of Science and Technology and University Library Hannover) intend to refurbish their public spaces. Thus an evaluation with focus groups started the design process to verify the actual occupancy of the reference and reading spaces and to define the requirements for learning spaces. The main aspects of this project of post-occupancy evaluation, the methodology and findings are given and, last but not least, a short discussion of the procedure.