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 Karl Franzens University Graz

Graz University of Technology 

Structure and functionality of CVD thin films and multilayers
Dr. Anna Maria Coclite
TU Graz
17:15 - 18:15 Tuesday 22 November 2016 TUG P2

Functional thin films offer innovative solutions for many technological applications: organic electronics, smart devices for biotechnology, microfluidics, membrane technology, sensors and drug delivery systems. The development of functional thin films, engineered to achieve all the desired properties, requires advanced growth techniques. The development of dry growth methods - based on vacuum- aims to complement and enlarges the applicability of functional thin films to fields where the presence of solvent is detrimental.
Successful results in terms of rationally designed micro- and nanoengineered materials will be demonstrated using as a case study the growth of functional polymers by initiated CVD (iCVD).[1] The high versatility of iCVD in driving application-specific properties into the material will be discussed. Layered nanostructures were obtained by iCVD by crystallizing the polymers in a bilayer structure, perpendicular to the substrate surface, formed by perfluorinated pendant chains. Acid moieties were introduced to form ionic channels among the bilayers –parallel to the substrate surface. This type of structure was demonstrated for proton conductivity.[2] Another strong link between structure and functionality will regard multi-stimuli-responsive materials. Stimuli-responsive polymer changes size and shape, depending on their structure, when stimulated by light and humidity.[3] The research in this field will continue by exploring the sensing properties of an array of core-shell nanorods of such stimuli-responsive material combined with a ZnO core obtained by Plasma-Atomic Layer Deposition, as funded by a Starting Grant of the European Research Council.