In-situ GISAXS heating experiments on self-assembled Gold nanoparticles

Thermal morphology changes of self-assembled Gold nanoparticles have been studied using the SAXSpoint 2.0 system with the temperature controlled GISAXS stage.


Colloidal gold (and many other) nanoparticles have widespread use due to their interesting electronic, chemical, and biological properties. These nanoparticles often show interesting self-assembly effects and various two- and three-dimensional nanostructures are known. The electronic properties of such assemblies depend not only on the size of the nanoparticles, but also on their structural arrangement. Monolayers of hexagonally packed Au nanoparticles, for example, are a promising material for strain gauges at the nanoscale level.

The practical applicability of such thin film materials is of course limited by the e. g., thermal stability of such systems. Therefore temperature controlled, in-situ grazing-incidence small-angle scattering (GISAXS) measurements are ideal to study the thermal properties of such films.

The Anton Paar SAXSpoint 2.0 system with its temperature-controlled GISAXS stage is the perfect tool for such experiments, as it enables GISAXS measurements at precisely controlled temperature and atmosphere (air, inert gas or vacuum) in the range from ambient temperature to 500 °C.

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