Title :
The electrical conductivity of very thin ferroelectric VDF-TrFE copolymer films
Author :
Glatz-Reichenback, J. ; Dransfeld, Klause
Author_Institution :
Fakultat fuer Phys., Konstanz Univ., Germany
Abstract :
Very thin films (down to 40 nm) of vinylidenefluoride-trifluoroethylene (VDF-TrFE) copolymers were prepared by the spin-coating technique. A strong growth of the DC conductivity for increasing electric fields and decreasing film thicknesses is found. The temperature dependence of the conductivity follows an Arrhenius law with a clear change of the activation energy at 335 K for heating as well as cooling independent of the polarization
Keywords :
dielectric polarisation; electrets; electronic conduction in insulating thin films; ferroelectric thin films; heat treatment; polymer blends; polymer films; 335 K; Arrhenius law; DC conductivity; VDF-TrFE; activation energy; cooling; copolymer films; decreasing film thicknesses; electrets; ferroelectric thin films; heating; increasing electric fields; polarization; spin-coating technique; temperature dependence; vinylidenefluoride-trifluoroethylene; Conductive films; Conductivity; Cooling; Crystallization; Ferroelectric films; Ferroelectric materials; Heating; Polarization; Temperature dependence; Transistors;
Conference_Titel :
Electrets, 1991. (ISE 7) Proceedings., 7th International Symposium on (Cat. No.91CH3029-6)
Conference_Location :
Berlin
Print_ISBN :
0-7803-0112-9
DOI :
10.1109/ISE.1991.167196
