Berlin 2018 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 20: Poster Session I
CPP 20.9: Poster
Montag, 12. März 2018, 17:30–19:30, Poster A
In situ GISAXS analysis of spray deposited metal-biopolymer thin films — •Wiebke Ohm1, Michał Kamiński1, Pallavi Pandit1, Calvin Brett1,2, Shun Yu2, Nitesh Mittal2, Daniel Söderberg2, and Stephan V. Roth1,2 — 1Deutsches Elektronen-Synchrotron Hamburg, Notkestraße 85, 22607 Hamburg — 2KTH Royal Institute of Technology, Department of Fibre and Polymer Technology, Teknikringen 56-58, SE-100 44 Stockholm, Sweden
Conductive polymer substrates based on metal coated cellulose layers offer a renewable and sustainable replacement for synthetic polymer substrates, which is essential for many applications in nanotechnology. In order to reach this target, we follow a route combining cellulose nanofibril thin films with silver nanowire (Ag NW) coating offering the additional advantage of transparency. For effective industrial fabrication, not only the controlled arrangement of the precursors during the deposition process is essential but also the use of an industrial compatible deposition process. Air-brush spray deposition is a versatile deposition technique that fulfils industrial demands and was thus chosen for preparation of metal-cellulose thin films.
We investigated all spray deposited cellulose/Ag NW layer form aqueous and alcoholic solution. In situ grazing incidence small angle x-ray scattering (GISAXS) in combination with microscopy techniques of the final layers revealed the inner structure and arrangement of these films. The conductivity and transparency as function of surface coverage are investigated for Ag NW deposited on different substrates. First GISAXS results of aligned Ag NW will be presented.