Local Charge Injection and Extraction on Surface-Modified Al2O3 Nanoparticles in LDPE

被引：64

作者：

Borgani, Riccardo ^{[1
]}

Paon, Love K. H. ^{[2
]}

Hedenqvist, Mikael S. ^{[2
]}

Gedde, Ulf W. ^{[2
]}

Haviland, David B. ^{[1
]}

机构：

[1] KTH Royal Inst Technol, Nanostruct Phys, S-10691 Stockholm, Sweden

[2] KTH Royal Inst Technol, Fibre & Polymer Technol, S-10044 Stockholm, Sweden

来源：

NANO LETTERS | 2016年 / 16卷 / 09期

基金：

瑞典研究理事会;

关键词：

polyethylene nanocomposites; nanodielectrics; HVDC; surface potential; intermodulation; KPFM; NANODIELECTRICS;

D O I：

10.1021/acs.nanolett.6b02920

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We use a recently developed scanning, probe technique to image with high spatial resolution the injection and extraction of charge around individual surface-modified aluminum oxide nanoparticles embedded in a low density polyethylene (LDPE) matrix. We find that the experimental are consistent with a simple band structure Model:where localized electronic states are available in the band gap (trap states) in; the vicinity of the nanoparticles. This work offers experimental support to a previously proposed mechanism for enhanced insulating properties of nanocomposite LDPE and provides a powerful experimental tool to further investigate such properties.

引用

页码：5934 / 5937

页数：4

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