Solution-processed transparent ferroelectric nylon thin films

Autor: Saleem Anwar, Wojciech Zajaczkowski, Ulrike Kemmer-Jonas, Hamed Sharifi Dehsari, Manfred Wagner, Thomas Lenz, Holger Frey, Philipp von Tiedemann, Manasvi Kumar, Daniel Pinkal, Kamal Asadi, Wojciech Pisula, Robert Graf
Rok vydání: 2019
Předmět:
Zdroj: Science Advances
ISSN: 2375-2548
Popis: We have developed a method to solution process strongly hydrogen-bonded odd nylons into ferroelectric thin films.
Ferroelectricity, a bistable ordering of electrical dipoles in a material, is widely used in sensors, actuators, nonlinear optics, and data storage. Traditional ferroelectrics are ceramic based. Ferroelectric polymers are inexpensive lead-free materials that offer unique features such as the freedom of design enabled by chemistry, the facile solution-based low-temperature processing, and mechanical flexibility. Among engineering polymers, odd nylons are ferroelectric. Since the discovery of ferroelectricity in polymers, nearly half a century ago, a solution-processed ferroelectric nylon thin film has not been demonstrated because of the strong tendency of nylon chains to form hydrogen bonds. We show the solution processing of transparent ferroelectric thin film capacitors of odd nylons. The demonstration of ferroelectricity, as well as the way to obtain thin films, makes odd nylons attractive for applications in flexible devices, soft robotics, biomedical devices, and electronic textiles.
Databáze: OpenAIRE