Annual Conference on Electrical Insulation and Dielectric Phenomena
DOI: 10.1109/ceidp.1990.201333
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Influence of charge injection on the formation of remanent polarization in P(VDF-TrFE) copolymers

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Cited by 23 publications
(5 citation statements)
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“…This is followed by application of a strong electric field across the thickness of the film to align the dipoles contained within [5]. These dipoles are then fixed in their orientation by charges injected through the electrodes into coulomb traps within the PVDF by the applied field [6]. This process is conducted either at room or elevated temperature.…”
Section: Introductionmentioning
confidence: 99%
“…This is followed by application of a strong electric field across the thickness of the film to align the dipoles contained within [5]. These dipoles are then fixed in their orientation by charges injected through the electrodes into coulomb traps within the PVDF by the applied field [6]. This process is conducted either at room or elevated temperature.…”
Section: Introductionmentioning
confidence: 99%
“…Others emphasized the role of injected charges for polarization stabilization. From measurements with and without insulating electrodes [45] and from the time delay between dipole alignment and polarization stabilization [46], it was concluded that charge injection from electrodes and their trapping at the surface of polarized crystals is important for stable polarization [10]. Secondly and referring to that, it could be possible that additional charge A reduced average field strength (equivalent to a reduced poling voltage) was required for the onset of polarization if poling was performed under optical excitation (Figure 13).…”
Section: Ferroelectric Propertiesmentioning
confidence: 99%
“…сегнетоэлектрические кристаллиты распределены в неупорядоченной аморфной фазе. До настоящего времени не установлено, где локализованы компенсирующие заряды [13][14][15] и каким образом они могут быть распознаны и идентифицированы экспериментально.…”
Section: а є сергєєва с н федосов в і солошенко о ф бутенкunclassified
“…Было установлено, что поляризованные пленки ПВДФ обладают меньшей электропроводностью, чем неполяризованные [5,16]. Измерение пространственного распределения поляризации показало, что имеет место инжекция зарядов в объем образца, которые вызывают неоднородность поляризации [6,7,9,13,14]. Мы предложили модель формирования поляризации в ПВДФ и в других сегнетоэлектрических полимерах, предполагая, что захваченные заряды и поляризация образуют самосогласованную сбалансированную систему [8,[17][18][19].…”
Section: а є сергєєва с н федосов в і солошенко о ф бутенкunclassified