A dielectric study on colloidal silica nanoparticle Layer-by-Layer assemblies on polycarbonate

被引：2

作者：

Carosio, Federico ^{[1
]}

Banet, Laurent ^{[2
]}

Freebody, Nicola ^{[3
]}

Reading, Martin ^{[3
]}

Agnel, Serge ^{[2
]}

Castellon, Jerome ^{[2
]}

Vaughan, Alun S. ^{[3
]}

Malucelli, Giulio ^{[1
]}

机构：

[1] Politecn Torino, Dept Appl Sci & Technol, I-15121 Alessandria, Italy

[2] Univ Montpellier 2, Inst Elect Sud, F-34095 Montpellier 5, France

[3] Univ Southampton, Tony Davies High Voltage Lab, Southampton SO17 1BJ, Hants, England

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2013年 / 408卷

关键词：

Layer-by-Layer assembly; Colloidal silica nanoparticles; Space charge accumulation; Electrical voltage breakdown; Corona discharge;

D O I：

10.1016/j.jcis.2013.07.027

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This study focuses on the dielectrical characterization of polycarbonate films coated with silica nanoparticle bilayers assembled through the Layer-by-Layer (LbL) technique. This is the first attempt of dielectric characterization performed on LbL-treated plastic substrates. To this aim, LbL coatings consisting of oppositely charged colloidal silica have been built on a polymeric substrate (polycarbonate). Then, dielectric features such as space charge accumulation, electrical voltage breakdown, and resistance to corona discharge (through laser ablation) have demonstrated that the colloidal silica nanoparticle assemblies can influence the nature of the trapped space charges and affect the resistance of polycarbonate to corona discharge, changing the distribution of the laser energy on impact. (C) 2013 Elsevier Inc. All rights reserved.

引用

页码：252 / 255

页数：4

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