Start month: June 2003
School: May 2004
Leader: Prof. Bożena Hilczer;
e-mail: Bozena.Hilczer@ifmpan.poznan.pl
Objectives:
The School will be devoted to nanoscale heterogeneity and dielectric and pyroelectric response of: ferroelectric polymers, polymer relaxors, electroactive ceramic-polymer nanocomposites, stable low-permittivity materials and tuning their processing conditions. It is aimed to
- increase the cooperation and networking between scientists, engineering and students from European centres
- discuss and preparation for EU RTD programs on polymer and composites for microelectronics and robotics.
Ferroelectric polymers, exhibiting also piro- and piezoelectric properties, are attractive for applications since both the the sensing and actuating functions can be realized in the same material. The materials can be prepared with low costs in form of large sheets, due to low density can match the acoustic impedance of water and human skin and their low permittivity is suitable for the figures of merit. Moreover, radiation-induced functionalization of ferroelectric copolymers can be used to prepare materials with giant electrostriction and weak-temperature dependent permittivity in the room remperature range.
Low-permittivity materials are essential for advanced microelectronics: at small sizes the inductive and capacitance effects, that influence the signal delay, increase. Promising stable materials with e Ł 2.5 could be selected from heteroaromatic polymers and porous polymeric materials.
Ferroelectric ceramic-polymer nanocomposites were recently found to exhibit excellent dielectric absorption in the high-frequency range at room temperature that makes the material attractive for applications. Dielectric and pyroelectric response of the electroceramic-polymer nanocomposites could be designed for various applications.
