Number of the records: 1  

Positron annihilation study of cavities in black Au films

  1. 1.
    0476823 - FZÚ 2018 RIV GB eng C - Conference Paper (international conference)
    Melikhova, O. - Čízek, J. - Hruška, P. - Vlček, M. - Procházka, I. - Anwand, W. - Novotný, Michal - Bulíř, Jiří
    Positron annihilation study of cavities in black Au films.
    Journal of Physics: Conference series. Vol. 791. Bristol: IOP Publishing Ltd., 2017, s. 1-4, č. článku 012018. ISSN 1742-6588.
    [International Workshop on Slow Positron Beam Techniques and Applications /14./ (SLOPOS 2016). Kunibiki MesseMatsue (JP), 22.05.2016-27.05.2016]
    R&D Projects: GA ČR GBP108/12/G043
    Institutional support: RVO:68378271
    Keywords : black gold * porous metal * evaporation * positron annihilation spectroscopy
    OECD category: Condensed matter physics (including formerly solid state physics, supercond.)

    Defects in a black Au film were studied using variable energy positron annihilation spectroscopy. Black Au films exhibit porous morphology similar to cauliflower. This type of structure enhances the optical absorption due to a multiple reflections in the micro-cavities. A nanostructured black Au film was compared with conventional smooth Au films with high reflectivity. The black Au film exhibited a remarkably enhanced S-parameter in sub-surface region. This is caused by a narrow para-Positronium contribution to the annihilation peak.
    Permanent Link: http://hdl.handle.net/11104/0273238

     
     
Number of the records: 1  

  This site uses cookies to make them easier to browse. Learn more about how we use cookies.