Electromagnetic Characteristics of Polyaniline/SWCNT Composites

Javvaji, Brahmanandam and Mahapatra, Roy D and Raha, S (2013) Electromagnetic Characteristics of Polyaniline/SWCNT Composites. In: Conference on Nanosensors, Biosensors, and Info-Tech Sensors and Systems, MAR 10-14, 2013 , San Diego, CA.

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Abstract

Electromagnetic field interactions with the composites made up of polyaniline (PANI) and single wall carbon nanotube (SWCNT) are simulated using the discrete dipole approximation. Recent observations on polymer nano-composites explain the interface interactions between the PANI host and the carbon nanostructures. These types of composite have potential applications in organic solar cell, gas sensor, bio-sensor and electro-chromic devices. Various nanostructures of PANI is possible in the form of nanowires, nanodisks, nanofibers and nanotubes have been reported. In the present study, we considered two types of composite, one is the PANI wrapped CNT and the other is CNT immersed in PANI nanotube. We use Modified Thole's parameters for calculating frequency dependent atomic polarizability of composites. Absorption spectra of the composites are studied by illuminating a wide range of electromagnetic energy spectrum. From the absorption spectra, we observe plasmon excitation in near-infrared region similar to that in SWCNTs reported recently. The interactions between the PANI and CNT in the composite, resulting electromagnetic absorptions are simulated.

Item Type:	Conference Proceedings
Series.:	Proceedings of SPIE
Publisher:	SPIE-INT SOC OPTICAL ENGINEERING
Additional Information:	Conference on Nanosensors, Biosensors, and Info-Tech Sensors and Systems, San Diego, CA, MAR 10-14, 2013
Keywords:	Carbon nanotube; polyaniline nanotube; electromagnetic; radiation; absorption; plasmon
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	16 Nov 2013 13:54
Last Modified:	16 Nov 2013 13:54
URI:	http://eprints.iisc.ac.in/id/eprint/47764

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