Tunable gold-chitosan nanocomposites by local field engineering

被引：22

作者：

Cazacu, Ana ^{[1
,2
]}

Curecheriu, Lavinia ^{[1
]}

Neagu, Alexandra ^{[1
]}

Padurariu, Leontin ^{[1
]}

Cernescu, Adrian ^{[3
]}

Lisiecki, Isabelle ^{[4
]}

Mitoseriu, Liliana ^{[1
]}

机构：

[1] Alexandru Ioan Cuza Univ, Dept Phys, Iasi 700506, Romania

[2] Univ Genoa, Dept Chem & Proc Engn, I-16126 Genoa, Italy

[3] Max Planck Inst Quantum Opt, D-85741 Garching, Germany

[4] Univ Paris 06, Lab Mat Mesoscop & Nanometr, UMR CNRS 7070, F-75005 Paris, France

来源：

APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 22期

关键词：

THIN-FILMS; DIELECTRIC-PROPERTIES; DEVICE APPLICATIONS; NANOPARTICLES; TEMPERATURE; MICROSCOPY; COMPOSITE; CERAMICS; VOLTAGE;

D O I：

10.1063/1.4809673

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A method to control the permittivity and tunability in composite materials formed by conductive nanoparticles embedded in a flexible nonlinear dielectric matrix is proposed. The local field distributions in composite structures were determined and the field-induced permittivity was estimated for different volume fraction of conductive particles. The predicted tunability behavior agrees well with the observed trends obtained for gold nanoparticles embedded in chitosan matrix. The paper demonstrates the concept of engineered local fields in nanocomposites by using metallic nanoparticles as fillers in polymer matrix for tailoring the permittivity and tunability values. (C) 2013 AIP Publishing LLC.

引用

页数：5

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