Coplanar switching of polarization in thin films of vinylidene fluoride oligomers

Abstract

Switching of vinylidene fluoride oligomer thin with molecular chains aligned normal to the substrate and exhibiting a preferential in-plane have been investigated using coplanar geometry of inter-digital via high-resolution It has been shown that in-plane switching proceeds via non-180° rotation of dipoles mediated by non-stochastic expansion, and coalescence of domains. As-grown multidomain configuration is found to be strongly pinned aided by charged and the electrically induced (in-plane) mono-domain states relax to the as-grown state. The observed (approximately 0.6 MV/m) is two to three orders of magnitude smaller than that for the oligomer with out-of-plane It is suggested that the low steric hindrance to the rotation of molecular dipoles gives rise to the observed low