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.
Please note that you will need to login with your ILL credentials to download the data.
Download DataThe 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
ILL has partnered with DataCite as the registration agency
for data persistent identifiers.