Direct Patterning of Functional Materials via Atmospheric-Pressure Ion Deposition
T.E. Hamedinger, T. Steindl, J. Albering, S. Rentenberger and R. Saf
Graz University of Technology, AU
vapor deposition process, thin structured films, devices
Interest in thin films of functional organic materials has increased enormously in the past years because of various possible applications. Here we report an experimental setup for the processing of various organic materials into thin structured films under atmospheric pressure conditions. The technique is based on an electrospray process. Electrostatic lenses are used to extract ions which have been generated by the drying of initially formed micro-droplets. Thin structured films are then produced by the deposition of the resulting ion beam onto a moveable target. The technique offers several interesting features, including precise film thicknesses control. Experiments investigating structured deposition are reported, this being the first step towards the production of thin films where in all three dimensions the chemical composition can be chosen at will. This approach might provide a simple strategy towards thin structured films and composites which are currently unattainable.
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Nanotech 2005 Conference Program Abstract