Electrical And Dielectric Properties Of Carbon Nanotube Containing Se85Te10Ag5 Glassy Composites

A. N. Upadhyay1, R. S.Tiwari1, Kedar Singh1,2*

1Department of Physics, Faculty of Science, Banaras Hindu University, Varanasi 221005, India

2School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110067, India

Adv. Mater. Lett., 2015, 6 (12), pp 1098-1103

DOI: 10.5185/amlett.2015.5978

Publication Date (Web): Nov 24, 2015

E-mail: kedarbhu08@gmail.com

Abstract


The electrical and dielectric properties of 3 and 5 wt. % of multi-walled carbon nanotube (MWCNT) containing Se85Te10Ag5 glassy composites have been investigated in the frequency range 20 Hz to 2 MHz from room temperature to 387 K. It has been found that the electrical conductivity is enhanced by 6 to 9 orders of magnitude up to 5 wt. % of MWCNT content resulting in transition for insulating to conducting behaviour. The activation energies for all samples have also been evaluated from the Arrhenius plot of the DC conductivity which shows a decreasing trend up to 5 wt. % MWCNT content. The largest dielectric constant of 142 (almost 10 times greater than pristine Se85Te10Ag5 glassy alloy) has been observed for 5 wt. % of MWCNT content at room temperature in low frequency range. Therefore it can be inferred that the electrical and dielectric properties of the chalcogenide glasses can be altered by the admixing or doping of carbon nanotubes (CNTs). The enhanced dielectric constant and electrical conductivity can be attributed to interface effect between MWCNT and the glassy matrix.

Keywords

Multi-walled carbon nanotube, glassy composite, dielectric constant, electrical conductivity.

Current Issue

Advanced Materials Congress Celebrating 10th Years of Establishment


Secure Management of Networked Batteries for Building Integrated Photovoltaics (BIPV) Systems  


The Cause of 100-year Low Carbonated Concrete of the Bridge 


Organic Montmorillonite Intercalated Nano-composites Prevent Post-Surgical Associated Infections


Morphology/tensile Performance Relationship for LLDPE/PP Double Gated Injected Blends


Preparation and Characterization of Nickel Ferrite Nanoparticles via Sol-gel Method


Nitrogen-doped Diamond Nanowire Gas Sensor for the Detection of Methane


Manufacture of Functional Open-cell Al Foams with Recycled Al Scraps using NaCl Ball Space Holder 


Vilsmeier-Haack Transformations under Non Classical Conditions


New Application of Highly Vesicular Basalt from Jabel Isbil Volcano (Dhamar-Rada'a Volcanic Field), Yemen


An Assessment of Tribological Characteristics under different Operating Condition


Functional Bi Coatings as A Perspective Material for Radiation Shields Production against Electron Radiation


Effects of Silica Modified NiFe2O4 on the Dielectric and Electrical Properties of NiFe2O4 filled Poly (methyl methacrylate) Composites


Previous issues
The Journey of a Decade to Advancing Materials Are the Electrospun Polymers Polymeric Fibers? Mechanical and Thermal Properties of Composite Material and Insulation for a Single Walled Tank for Cryogenic Liquids Prediction of Long-Term Behavior for Dynamically Loaded TPU Investigation of Doped Titanium Dioxide in Anatase Phase. Study ab initio using Density Functional Theory Comparison between Single Al2O3 or HfO2 Single Dielectric Layers and their Nanolaminated Systems Preparation of Stable and Optimized Antibody-gold Nanoparticle Conjugates for Point of Care Test Immunoassays Resonance-Based Temperature Sensors using a Wafer Level Vacuum Packaged SOI MEMS Process Integrated System Based on the Hall Sensors Incorporating Compensation of the Distortions The Efficacy of Cinnamomum Tamala as a Potential Antimicrobial Substance against the Multi-Drug Resistant Enterococcus Faecalis from Clinical Isolates The Effect of Complexing Reagent on Structural, Electrical and Optical Properties of CuS Thin Film Laser Cladding of Fluorapatite Nanopowders on Ti6Al4V Preparation and Evaluation of Sulfonate Polyethylene Glycol Borate Ester as a Modifier of Functional Properties of Complex Petroleum Lithium Grease

Upcoming Congress

Knowledge Experience at Sea TM