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

[11] Surfactant-assisted growth of novel PbS dendritic nanostructures via facile hydrothermal process [J].

Kuang, DB ;

Xu, AW ;

Fang, YP ;

Liu, HQ ;

Frommen, C ;

Fenske, D .

ADVANCED MATERIALS, 2003, 15 (20) :1747-+

[12] Dielectric behavior of nanocomposites of lead sulphide and ferroelectric glass ceramics [J].

Kundu, TK ;

Mukherjee, M ;

Chakravorty, D ;

Cross, LE .

JOURNAL OF APPLIED PHYSICS, 1998, 83 (08) :4380-4384

[13] Single-crystalline star-shaped nanocrystals and their evolution: Programming the geometry of nano-building blocks [J].

Lee, SM ;

Jun, YW ;

Cho, SN ;

Cheon, J .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (38) :11244-11245

[14] Composite nanotubes formed by self-assembly of PbS nanoparticles [J].

Leontidis, E ;

Orphanou, M ;

Kyprianidou-Leodidou, T ;

Krumeich, F ;

Caseri, W .

NANO LETTERS, 2003, 3 (04) :569-572

[15] Biomolecule-assisted synthesis of highly ordered snowflakelike structures of bismuth sulfide nanorods [J].

Lu, QY ;

Gao, F ;

Komarneni, S .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (01) :54-55

[16] Hierarchical, star-shaped PbS crystals formed by a simple solution route [J].

Ma, YR ;

Qi, LM ;

Ma, JM ;

Cheng, HM .

CRYSTAL GROWTH & DESIGN, 2004, 4 (02) :351-354

[17] Shape controllable preparation of PbS crystals by a simple aqueous phase route [J].

Ni, YH ;

Liu, HJ ;

Wang, F ;

Liang, YY ;

Hong, JM ;

Ma, X ;

Xu, Z .

CRYSTAL GROWTH & DESIGN, 2004, 4 (04) :759-764

[18] THz and IR dielectric response of BaTiO3 core-shell composites: evidence for interdiffusion [J].

Nuzhnyy, D. ;

Petzelt, J. ;

Rychetsky, I. ;

Buscaglia, V. ;

Buscaglia, M. T. ;

Nanni, P. .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2009, 42 (15)

[19] Polarization effects and phase equilibria in high-energy-density polyvinylidene-fluoride-based polymers [J].

Ranjan, V. ;

Yu, L. ;

Nakhmanson, Serge ;

Bernholc, Jerry ;

Nardelli, M. Buongiorno .

ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, 2010, 66 :553-557

[20] Characterization of (PVDF+LiFePO4) solid polymer electrolyte [J].

Reddy, Ch. V. Subba ;

Chen, M. ;

Jin, W. ;

Zhu, Q. Y. ;

Chen, W. ;

Mho, Sun-il .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 2007, 37 (05) :637-642

← 1 2 3 →