Berlin 2015 – wissenschaftliches Programm
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BP: Fachverband Biologische Physik
BP 5: Nanoparticles and Composite Materials I (joint CPP/BP)
BP 5.5: Vortrag
Montag, 16. März 2015, 10:30–10:45, C 243
In situ Study of Spray-deposited Gold Nanoparticles Assemblies on Polymer Substrates Using GISAXS — •Peng Zhang1, Koyiloth v. Sarathlal1, Santoro Gonzalo1, Nipam Shah2, Guangsu Huang3, and Stephan v. Roth1 — 1Deutsches Elektronen Synchrotron, Notkestr. 85,22607 Hamburg — 2Fachbereichs Maschinenbau und Wirtschaft, Fachhochschule Lübeck, 23562 Lübeck — 3College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
The assembly of the nanoparticles from the solution still remains challenging, namely inhomogeneous material dispersion for example, coffee-stain-like or clumps of particles is observed1. To get designed nanocomposite in thin films, controlling the solution evaporation and promoting the ordering of nanoparticles on the templated substrates is a smart and feasible choice. Spray deposition is one of the desirable techniques to manipulate solvent evaporation by atomizing the solution2,3. Here we present our recent in situ studies on the directed assembly of spray deposited gold nanoparticles on patterned substrates. By manipulating the assembly process, we find that the well-ordered gold nanoparticles show enhanced optical properties. These findings are attractive for the applications such as solar cells and antireflection coating. [1] Yunker et al. Nature 476, 308 (2011); [2] Al-Hussein et al. Langmuir 29, 2490 (2013); [3]Herzog et al. Langmuir 29, 11260 (2013).