Berlin 2018 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 33: Poster Session III
CPP 33.35: Poster
Dienstag, 13. März 2018, 14:00–16:00, Poster C
Evolution of atomic structure and nanoparticle formation during spray deposition of metal organic decomposition inks — •Björn Fricke1, Wiebke Ohm1, Calvin Brett1,2, Matthias Schwartzkopf1, André Rothkirch1, Tim Laarmann1,3, and Stephan V. Roth1,4 — 1Deutsches Elektronen-Synchrotron Hamburg, Notkestraße 85, 22607 Hamburg — 2KTH Royal Institute of Technology, Department of Mechanics, Teknikringen 8, SE-100 44 Stockholm, Sweden — 3The Hamburg Centre for Ultrafast Imaging CUI, Luruper Chaussee 149, Hamburg 22761, Germany — 4KTH Royal Institute of Technology, Department of Fibre and Polymer Technology, Teknikringen 56-58, SE-100 44 Stockholm, Sweden
We present a spray deposition process for fabrication of nanostructured silver layers which is advantageous in comparison to other methods. Silver nitrate solution was used as precursor for the nanostructures, which is beneficial, because of its solubility and the low toxicity. We investigated the growth of deposited silver nitrate nanoparticles as well as the influence of an annealing process, by optical and atomic force microscopy and UV-VIS spectroscopy. In addition, in situ GISAXS and GIWAXS were used to identify morphological and chemical changes during the spraying/heating process: The nanoparticle growth was investigated as a function of the spray duration. During the heat-induced transformation, the nanoparticles show coalescence, resulting in a larger percentage of surface coverage in comparison to the as deposited films. Additionally, the temperature dependent conversion from silver nitrate to silver is shown.