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Intrinsically conductive organic polymers as electrode material for functional ceramics in electronics
Author(s) -
Schnöller M.,
Wersing W.,
Naarman H.
Publication year - 1987
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19870080109
Subject(s) - materials science , piezoelectricity , electrode , ceramic , hysteresis , polymer , electrical conductor , permittivity , conductive polymer , dielectric , composite material , ferroelectricity , polypyrrole , optoelectronics , polymerization , chemistry , physics , quantum mechanics
Layers of intrinsically conductive organic polymers were chemically or electrochemically applied to ferroelectric ceramics. Using chemically deposited polypyrrole layers as an example, the applicability of these layers for electrodes was demonstrated and compared with metal electrodes. Practically the same, almost square hysteresis loops were observed with these polymer electrodes. In addition, equivalently high permittivity and piezoelectric constants were found. Conductive polymer layers can be used to an advantage in all applications where only relatively low operating frequencies are used, i.e. especially for all types of piezoelectric transducers which function quasistatically. Due to their elastic properties they are also interesting for piezoelectric composites. Furthermore, because of their optical absorption they appear to be interesting for pyrodetectors. They can also be considered for electrical screening and protective layers as well as for further applications.