Published September 14, 2015 | Version v1
Journal article Metadata-only

Ag induced electromagnetic interference shielding of Ag-graphite/PVDF flexible nanocomposites thinfilms

Creators

  • 1. Polymer Composite Laboratory, Department of Chemical Engineering, Anna University, Chennai 600 025 (India)
  • 2. Microwave Laboratory, Department of Physics, Indian Institute of Technology Madras, Chennai 600036 (India)
  • 3. Department of Chemistry, Thiruvalluvar University, Serkkadu, Vellore 632115 (India)

Description

We report Ag nanoparticle induced Electromagnetic Interference (EMI) shielding in a flexible composite films of Ag nanoparticles incorporated graphite/poly-vinylidene difluoride (PVDF). PVDF nanocomposite thin-films were synthesized by intercalating Ag in Graphite (GIC) followed by dispersing GIC in PVDF. The X-ray diffraction analysis and the high-resolution transmission electron microscope clearly dictate the microstructure of silver nanoparticles in graphite intercalated composite of PVDF matrix. The conductivity values of nanocomposites are increased upto 2.5 times when compared to neat PVDF having a value of 2.70 S/cm at 1 MHz. The presence of Ag broadly enhanced the dielectric constant and lowers the dielectric loss of PVDF matrix proportional to Ag content. The EMI shielding effectiveness of the composites is 29.1 dB at 12.4 GHz for the sample having 5 wt. % Ag and 10 wt. % graphite in PVDF

Additional details

Identifiers

DOI
10.1063/1.4931125;

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
107
Journal Issue
11
Journal Page Range
p. 113107-113107.5
ISSN
0003-6951
CODEN
APPLAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
47052077
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
CLATHRATES; DIELECTRIC MATERIALS; GHZ RANGE 01-100; GRAPHITE; INTERFERENCE; MHZ RANGE 01-100; MICROSTRUCTURE; NANOCOMPOSITES; NANOPARTICLES; ORGANIC FLUORINE COMPOUNDS; PERMITTIVITY; POLYVINYLS; RESOLUTION; SHIELDING; SILVER; THIN FILMS; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION
Descriptors DEC
CARBON; COHERENT SCATTERING; DIELECTRIC PROPERTIES; DIFFRACTION; ELECTRICAL PROPERTIES; ELECTRON MICROSCOPY; ELEMENTS; FILMS; FREQUENCY RANGE; GHZ RANGE; MATERIALS; METALS; MHZ RANGE; MICROSCOPY; MINERALS; NANOMATERIALS; NONMETALS; ORGANIC COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; ORGANIC POLYMERS; PARTICLES; PHYSICAL PROPERTIES; POLYMERS; SCATTERING; TRANSITION ELEMENTS

Optional Information

Notes
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