Regensburg 2016 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 9: Nanoparticles, Nanocrystals and Composites II
CPP 9.1: Vortrag
Montag, 7. März 2016, 15:00–15:15, H41
Tailoring metal nanoparticle layers at the polymer-metal interface — •Stephan V. Roth1, Matthias Schwartzkopf1, Oleksandr Polonskyi2, Alexander Hinz2, Thomas Strunskus2, Franziska Löhrer3, Volker Körstgens3, Franz Faupel2, and Peter Müller-Buschbaum3 — 1DESY, Notkestr. 85, 22607 Hamburg — 2CAU zu Kiel, Kaiserstr.2, 24143 Kiel — 3TU München, Physik-Department, LS Funktionelle Materialien, James-Franck-Str. 1, 85748 Garching
Organic photovoltaic cells, flexible electronics and sensors crucially rely on nanostructuring of thin films at the polymer-metal interface [1]. Here, vacuum deposition of metal layers offers a versatile route for fabricating tailored metal arrays, ranging from isolated nanoparticles to full scale electrical contacts. The interaction of the metal atoms with the underlying polymer template (e.g. wetting) as well as the relevant deposition conditions (e.g. deposition rate and bias-voltage) play a crucial role and influence both the metal layer growth and the development of the near-surface interface in the polymer-metal nanocomposite. We observe in real-time the industrial relevant aluminium layer installation in the different growth modes from nucleation to percolation during sputter deposition on polymer template. Combining in-situ x-ray scattering and ellipsometry, we thus correlate the structural and morphological characteristics of the polymer-metal interface with its optical properties. [1] Roth et al., ACS. Appl. Mater. Interfaces 7, 12470 (2015), & J. Appl. Cryst. 48, 1827 (2015)