Ferroelectric Nanoparticles in Polyvinyl Acetate (PVAc) Matrix-A Method to Enhance the Dielectric Constant of Polymers
Ferroelectric Nanoparticles in Polyvinyl Acetate (PVAc) Matrix-A Method to Enhance the Dielectric Constant of Polymers
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聚醋酸乙烯酯 (PVAc) 基体中的铁电纳米颗粒 - 一种提高聚合物介电常数的方法
DOI：
10.1166/nnl.2010.1045
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发表时间：
2010
影响因子：
--
通讯作者：
Black D
中科院分区：
文献类型：
--
作者：
Black D
为了利用有机材料制造电子器件的可能性，必须能够控制它们的电学特性。通过将带有膦配体的四方钛酸钡纳米粒子引入到聚乙酸乙烯酯基质中，可以提高聚合物的相对介电常数。这种效应的上限尚未被发现，尽管使用不含配体的钛酸钡填充物进行相同的工作，表现出与聚合物渗流极限时发生的传导效应一致的行为。使用该配体生产的器件显示出纳米颗粒在聚合物基质中分布均匀，并且具有良好且可重复性的电学特性。
In order to take advantage of the possibilities for constructing electronic devices, offered by organic materials, it is essential to be able to control their electrical characteristics. By incorporating tetragonal barium titanate nanoparticles with a phosphonic acid ligand into a matrix of poly-vinyl acetate it has been shown that it is possible to increase the relative permittivity of the polymer. The upper limit of this effect has not yet been found, although carrying out the same work using barium titanate filler without the ligands exhibits behaviour consistent with conduction effects that occur at the percolation limit of the polymer. The devices produced using the ligand exhibit even distribution of nanoparticles within the polymer matrix and good and reproducible electrical characteristics.