Thin film technology has pushed fascinating break through applications like microchip fabrication, medical technology or anti-reflection coatings. The presentation seeks to introduce the idea to bring the 2D thin film technology into 3D: Rolling up a thin film of nanoscopic thickness into a tube with a few micrometers in diameter, that is in space interconnected after a few tens of micrometers with other tubes pointing in different directions, will give you a relatively robust 3D tube network but with a weight in the scale of the ambient air and unusual physical properties. The talk will show that a simple sacrificial template approach can be used to realize these "aero structures". Properties of this class of materials will be illustrated but not limited to aero carbon structures from graphene or carbon nanotubes [1], for applications like conductive silicone, energy materials and cell templates as well as the fabrication of aero hexagonal boron nitride [2] that can be employed in optics as "artificial solid fog".
[1] Nature Communications 8, 1215 (2017)
[2] Nature Communications 11, 1437 (2020)
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