Enhancement of dielectric constant in PVDF polymer using dendrite-shaped PbS nanostructures

被引：17

作者：

Devi, P. Indra ^{[1
]}

Sivabharathy, M. ^{[1
]}

Ramachandran, K. ^{[1
]}

机构：

[1] Madurai Kamaraj Univ, Sch Phys, Madurai 625021, Tamil Nadu, India

来源：

OPTIK | 2013年 / 124卷 / 19期

关键词：

Polyvinylidene fluoride (PVDF); Dendrite-shaped PbS; Hydrothermal method; Dielectric permittivity; CRYSTALS; BEHAVIOR; NANOCRYSTALS; SULFIDE;

D O I：

10.1016/j.ijleo.2012.11.038

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Dendrite-shaped PbS has been successfully synthesized using hydrothermal method on a large scale. The formation of dendrite-shaped PbS was confirmed by scanning electron microscopy (SEM). A detailed study of variations in dielectric properties on frequency and temperature shows that composites of PVDF and dendrite-shaped PbS have significantly higher dielectric constant than PVDF/PbS nanoparticles (NP) nanocomposites due to low percolation threshold. (C) 2012 Elsevier GmbH. All rights reserved.

引用

页码：3872 / 3875

页数：4

共 28 条

[1] High-dielectric-constant ceramic-powder polymer composites [J].

Bai, Y ;

Cheng, ZY ;

Bharti, V ;

Xu, HS ;

Zhang, QM .

APPLIED PHYSICS LETTERS, 2000, 76 (25) :3804-3806

[2] Structural and thermal properties of PVDF/PVA blends [J].

Bama, G. Krishna ;

Devi, P. Indra ;

Ramachandran, K. .

JOURNAL OF MATERIALS SCIENCE, 2009, 44 (05) :1302-1307

[3] Dielectric behavior of novel three-phase MWNTs/BaTiO3/PVDF composites [J].

Dang, ZM ;

Fan, LZ ;

Shen, Y ;

Nan, CW .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2003, 103 (02) :140-144

[4] Dielectric behavior of Li and Ti co-doped NiO/PVDF composites [J].

Dang, ZM ;

Wu, JB ;

Fan, LZ ;

Nan, CW .

CHEMICAL PHYSICS LETTERS, 2003, 376 (3-4) :389-394

[5]

Deng Y., 2010, MATER LETT, V64, P517

[6] Dielectric studies on hybridised PVDF-ZnO nanocomposites [J].

Devi, P. Indra ;

Ramachandran, K. .

JOURNAL OF EXPERIMENTAL NANOSCIENCE, 2011, 6 (03) :281-293

[7]

Duan X. F., 2001, SCIENCE, V293, P1455

[8] Structural, optical and dielectric behavior of PVDF films filled with different concentrations of iodine [J].

Elashmawi, I. S. ;

Abdelrazek, E. M. ;

Ragab, H. M. ;

Hakeem, N. A. .

PHYSICA B-CONDENSED MATTER, 2010, 405 (01) :94-98

[9]

Indra Devi P., 2012, ADV SCI LETT, V11, P1

[10] Optical and dielectric properties of PVA capped nanocrystalline PbS thin films synthesized by chemical bath deposition [J].

Jana, S. ;

Thapa, R. ;

Maity, R. ;

Chattopadhyay, K. K. .

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2008, 40 (10) :3121-3126

← 1 2 3 →