Electrical conductivity of multi-walled carbon nanotubes doped conducting polythiophene
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2014, Vol 2, Issue 11
Abstract
To improve the functions of conducting polymers, the fabrication of multifunctional conducting polymer Nano composites has attracted a great deal of attention with the advent of carbon nanotubes (CNTs). Addition of CNTs in the matrix of conducting polymers changes their behaviour mostly towards the electrical conductivity. In this paper we report the influence of functionalized multi-walled carbon nanotubes (MWCNTs) on conductive properties of conducting polymer polythiophene (PTH). Nano composites based on multi-walled carbon nanotubes were synthesized by in-situ oxidative polymerization of thiophene monomer in the presence of functionalized CNTs. These Nano composites have been characterized by UV-VIS, FTIR, XRD and SEM to study the effect of incorporation of MWCNTs on the morphology, structure and crystalline of the conducting polythiophene. Addition of functionalized CNTs to the polymer matrix helps the polymer material to settle down on the walls of CNTs. The interaction between the quinoid ring of PTH and the MWCNT causes PTH chains to be adsorbed at the surface of MWCNT, thus forming a tubular core surrounding the MWCNT. Nano composites show high electrical conductivity compared to pure PTH. The enhancement in conductivity of the Nano composites is due to the charge transfer effect from the quinoid rings of the PTH to the MWCNT. The effect of MWCNT on the transport parameters of PTH was also studied. By comparing the transport parameters of PTH and PTH-CNT Nano composites, charge localization length ( ) and most probable hopping distance (R) were found to be decreased with high wt % of CNT in PTH-CNT Nano composites, whereas the charge hopping energy (w) was found to be increased. These results show that the addition of CNT in PTH matrix, improved the electrical properties of PTH and such Nano composites are most suitable advanced materials for electronic devices.
Authors and Affiliations
Milind D. Deshpande, Subhash B. Kondawar
Keywords
Related Articles
- EP ID EP19023
- DOI -
- Views 228
- Downloads 9
Size Effects on Flexural Behavior of Steel Fiber Reinforced Concrete with Industrial Wastes
Presently in India, about 960 million tonnes of solid waste is being generated annually as by-products during industrial, mining, municipal, agricultural and otherprocesses.Due to the rapid industrialization taking plac...
Seismic Response of Multi Storey RC Building with Friction Pendulum Bearing System
Buildings are very important after any natural hazards such as earthquake. The structural and nonstructural components are should repair and safe after earthquake. So to mitigate the effect of earthquake on the structur...
Analysis of Water Transmission Behaviour in Sandy Loam Soil under Different Tillage Operations of Mould Board Plough applying /Using Different Infiltration Models
The present research work was performed to investigate the effect of tillage intensity to the water transmission behavior for sandy loam soil in terms of infiltration rates and cumulative infiltration and its validation...
Design and architecture of Intel’s core i7 processor
The Intel core i7-900 desktop processor extreme edition series and Intel core i7-900 desktop processor series are intended for high performance high –end desktop, uni- processor server and workstation systems. Core i7 i...
Smart Interactive Advertising Board
There have been various navigation and tracking systems being developed with the help of technologies like GPS, GSM, Bluetooth, IR, Wi-Fi and Radar. Outdoor positioning systems have been deployed quite successfully usin...