Effect of in situ synthesized Fe2O3 and Co3O4 nanoparticles on electroactive β phase crystallization and dielectric properties of poly(vinylidene fluoride) thin films

被引：112
作者：
Thakur, Pradip [1 ]
Kool, Arpan [1 ]
Bagchi, Biswajoy [2 ]
Das, Sukhen [1 ]
Nandy, Papiya [1 ]
机构：
[1] Jadavpur Univ, Dept Phys, Kolkata 700032, India
[2] Cent Glass & Ceram Res Inst, Fuel Cell & Battery Div, Kolkata 700032, India
来源：
PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2015年 / 17卷 / 02期
关键词：
ELECTRICAL-PROPERTIES; FERROELECTRIC POLYMERS; COMPOSITES; NANOCOMPOSITES; CONDUCTIVITY; PVDF; MICROSTRUCTURE; ENHANCEMENT; NUCLEATION; CONSTANT;
D O I：
10.1039/c4cp04006f
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：
A simple and low cost in situ process has been developed to synthesize Fe2O3-Co3O4 nanoparticles (NPs) loaded poly(vinylidene fluoride) (PVDF) thin films. The electroactive beta phase nucleation mechanism and the dielectric properties of the films have been investigated by X-ray diffraction spectroscopy, Fourier transform infrared spectroscopy, differential scanning calorimetry and using an LCR meter. Results confirmed that the electroactive beta phase crystallization in the PVDF matrix is due to the fast nucleating or catalytic effect of the in situ NPs. Homogenous dispersion of in situ Fe2O3-Co3O4 NPs in the polymer matrix leads to strong interfacial interaction between the NPs and the polymer resulting in enhanced beta phase nucleation in PVDF and a large dielectric constant of the thin films. The observed variation in the electroactive beta phase nucleation by NPs (Fe2O3-Co3O4) and the dielectric properties of the thin films have been explained on the basis of surface charge, size, geometrical shape and extent of agglomeration of the NPs in the polymer matrix.
引用
收藏
页码：1368 / 1378
页数：11
相关论文
共 43 条
[1]  
[Anonymous], APPL ELECTROMAGNETIS
[2]   Crystallinity, magnetic and electrochemical studies of PVDF/Co3O4 polymer electrolyte [J].
Bhatt, Aarti Sripathi ;
Bhat, Denthaje Krishna .
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2012, 177 (02) :127-131
[3]   The effect of fibre concentration on the α to β-phase transformation, degree of crystallinity and electrical properties of vapour grown carbon nanofibre/poly(vinylidene fluoride) composites [J].
Costa, P. ;
Silva, J. ;
Sencadas, V. ;
Costa, C. M. ;
van Hattum, F. W. J. ;
Rocha, J. G. ;
Lanceros-Mendez, S. .
CARBON, 2009, 47 (11) :2590-2599
[4]   Novel composites of Copper nanowire/PVDF with superior dielectric properties [J].
da Silva, Aline Bruna ;
Arjmand, Mohammad ;
Sundararaj, Uttandaraman ;
Suman Bretas, Rosario Elida .
POLYMER, 2014, 55 (01) :226-234
[5]   Conduction and polarization mechanisms and trends in dielectrics [J].
Dalkin, T. W. .
IEEE ELECTRICAL INSULATION MAGAZINE, 2006, 22 (05) :11-28
[6]   Influence of matrix conductivity and Coulomb blockade effect on the percolation threshold of insulator-conductor composites [J].
Deepa, K. S. ;
Gopika, M. S. ;
James, J. .
COMPOSITES SCIENCE AND TECHNOLOGY, 2013, 78 :18-23
[7]   Positive Temperature Coefficient Properties of Multiwall Carbon Nanotubes/Poly(vinylidene fluoride) Nanocomposites [J].
Jiang, S. L. ;
Yu, Y. ;
Xie, J. J. ;
Wang, L. P. ;
Zeng, Y. K. ;
Fu, M. ;
Li, T. .
JOURNAL OF APPLIED POLYMER SCIENCE, 2010, 116 (02) :838-842
[8]   FORCE-FIELDS, STRUCTURES, AND PROPERTIES OF POLY(VINYLIDENE FLUORIDE) CRYSTALS [J].
KARASAWA, N ;
GODDARD, WA .
MACROMOLECULES, 1992, 25 (26) :7268-7281
[9]   Nanoparticle induced network self-assembly in polymer-carbon black composites [J].
Konishi, Y. ;
Cakmak, A. .
POLYMER, 2006, 47 (15) :5371-5391
[10]   Radiation-induced changes in the electrical properties of carbon filled PVDF thick films [J].
Korostynska, O. ;
Arshak, K. ;
Morris, D. ;
Arshak, A. ;
Jafer, E. .
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2007, 141 (03) :115-120
12345