Matthew Bachner

University of Michigan, Ann Arbor, MI, United States

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Publications (2)1.61 Total impact

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    ABSTRACT: We present the design and verification of a desktop system for the automated production of nanostructured thin films via spin-assisted layer-by-layer (spin-LBL) assembly. The utility of this system is demonstrated by fabricating polyvinyl alcohol/clay nanocomposites. Ellipsometry measurements demonstrate that the automated spin-LBL method creates composites with bilayer thickness and growth rate comparable to traditional dip-LBL; however, the cycle time of the spin-LBL method is an order of magnitude faster. Small angle X-ray scattering analysis shows that the clay platelets in spin-LBL nanocomposites are more highly aligned than in dip-LBL composites. This method can significantly increase the throughput of laboratory-scale LBL discovery and processing, can enable testing of functional properties of LBL nanocomposites over wafer-scale areas, and can be scaled to larger substrates for commercial production.
    Full-text · Article · Mar 2009 · The Review of scientific instruments
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    Matthew Bachner · Yeh Chuin Poh · Thomas Serbowicz · Steve Vozar
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    ABSTRACT: ME450 Capstone Design and Manufacturing Experience: Winter 2008 Layer-by-layer (LBL) assembly is a well-established method of producing multilayered nanostructured materials. In Professor Nicholas A. Kotov’s lab at the University of Michigan, LBL assembly is often accomplished via a dip-coating process, which is time consuming and often performed on unreliable equipment. Spin-assisted LBL assembly has the potential to reduce the fabrication time of nanostructured materials by an order of magnitude and increase the quality of the films. The purpose of this project is to design and produce a spin-assisted LBL assembly prototype using a spin-coater and an automated fluid delivery system for the production of a variety of different nanocomposites. Prof. Nicholas A. Kotov, Prof. John Hart, and Paul Podsiadlo
    Full-text · Article · Jun 2008