Eberle, GernotEisenmenger, Wolfgang2010-08-032016-03-312010-08-032016-03-311991353181242http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-56110http://elib.uni-stuttgart.de/handle/11682/4968http://dx.doi.org/10.18419/opus-4951PVDF films with high β-content are poled in an electric field of 60 MV/m at temperatures between 25°C and 120°C. At 25°C the alignment of dipoles takes place in a central poling zone during several hours of poling. When the temperature is increased to 120°C the poling time necessary to align the dipoles in this narrow zone is reduced to several seconds. In addition, at temperatures higher than 90°C and increased poling times the central poling zone first increases but later decreases in its dielectric displacement. Simultaneously in a 10 μm regime adjoining the positive electrode a secondary displacement zone starts to grow. The strong reduction of this peak under short circuit conditions indicates hetero-charge accumulation in front of an anode.eninfo:eu-repo/semantics/openAccessDielektrische Polarisation , Polymerfilm , Elektret530conferenceObject2011-11-16