Water and Polymer Dynamics in Nanoporous Polypyrrole-Silicon Membranes
We could recently show that by a combination of self-organized nanoporosity in silicon (npSi) with polymerization of an artificial muscle material (polypyrrole, PPy) inside pore space a material can be synthesized that shows macroscopic electrostrain; i.e. immersed in an aqueous electrolyte the material expands and contracts reversibly under electrical potential control. The voltage-strain coupling parameter is 3 orders of magnitude larger than the best-performing, all solid-state piezoelectric material (PZT). The exceptionally small operation voltages (0.3-0.8 V) along with the biocompatibility and the simple synthesis of the material could pave the way for silicon-based (bio-)actuorics. For obtaining a mechanistic understanding of the electroactuation dynamics of the PPy filled npSi membranes and for a comparison with ongoing Molecular Dynamics simulations studies, it would be important to determine the self-diffusion dynamics of water inside the PPy as well as the polymer dynamics inside the silicon pore space. Therefore, we are going to perform comprehensive quasi-elastic studies of dry and fully hydrated PPy-npSi hybrids as well as dry and hydrated bulk films of PPy on Si.
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The recommended format for citing this dataset in a research publication is in the following format:
HUBER Patrick; APPEL Markus; BRINKER Manuel; BUSCH Mark; Bernhard Frick; GOSTKOWSKA-LEKNER Natalia; HABICHT Klaus; HASEEB Haider and HOFMANN TOMMY. (2020). Water and Polymer Dynamics in Nanoporous Polypyrrole-Silicon Membranes. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.6-07-55
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