In situ study of spray-deposited gold nanoparticles assemblies on polymer substrates using GISAXS

Poster presented at the DGP Verhandlungen, held in Berlin (Germany) on March 15-20th, 2015.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