Preparation and Characterization of Ferroelectric Composite Ultrathin Film by Electrostatic Self-assembly

被引：1

作者：

Ye Yun ^{[1
]}

Jiang Ya-Dong ^{[2
]}

机构：

[1] Fuzhou Univ, Coll Phys & Telecommun Engn, Fuzhou 350002, Peoples R China

[2] Univ Elect Sci & Technol China, Sch Optoelect Informat, Chengdu 610054, Peoples R China

来源：

JOURNAL OF INORGANIC MATERIALS | 2009年 / 24卷 / 04期

关键词：

electrostatic self-assembly; composite ultrathin films; ferroelectric polymer; nano-granules; THIN-FILMS; GROWTH;

D O I：

10.3724/SP.J.1077.2009.00741

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The ferroelectric ultrathin multilayer of PDDA-/PVDF-BT were fabricated on the pretreated quartz substrates between cationic electrolyte of poly (diallyldimethyl ammonium chloride) (PDDA) and anion reagent by electrostatic self-assembly method. Negatively charged poly (vinylidene fluoride) (PVDF) dispersed with inorganic BaTiO3 nano-granules in organic solvent was using as anion reagent. The thickness of the 12-layer ferroelectric composite ultrathin films characterized by quartz crystal microbalance (QCM) is about 82nm, and there exists a nearly linear relationship between the thickness and layer number of ultrathin films. The results of SEM and XRD show that the composite ultrathin films are deposited on the quartz surface smoothly and densely with uniform distribution of BaTiO3 nano-granules, and excellent crystalline performance. The hysteresis loop of ferroelectric composite ultrathin films shows that the electric polarization of the composite ultrathin films is increased to 3 mu C/cm(2).

引用

页码：741 / 744

页数：4

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