Electromagnetic interference shielding efficiency of MnO2 nanorod doped polyaniline film

Bora, Pritom J and Vinoy, K J and Ramamurthy, Praveen C and Madras, Giridhar (2017) Electromagnetic interference shielding efficiency of MnO2 nanorod doped polyaniline film. In: MATERIALS RESEARCH EXPRESS, 4 (2).

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Abstract

The polymer nanocomposite thin film is of interest due to many advantages for electromagnetic interference (EMI) shielding. In this work, low temperature (-30 +/- 2 degrees C) in situ synthesized polyaniline (PANI)-MnO2 nanorod composite (PMN) were solution processed, followed by acid vapor treatment for preparing free standing films and EMI shielding effectiveness (SE) were investigated in the frequency range i.e. X-band (8.2-12.4 GHz) and Ku-band (12.4-18 GHz). As prepared PMN film (169 +/- 2 mu m) shows most effective EMI SE similar to 35 dB (EMI shielding due to absorption, SEA similar to 24 dB and EMI shielding due to reflection SER similar to 11 dB) in the X-band which was observed to be similar to 39 dB (SEA similar to 29 dB and SER similar to 10 dB) in the Ku-band. The variations of conductivity, penetration depth, EM attenuation constant of the PMN film in the X-band and Ku-band were also investigated along with dielectric study.

Item Type:	Journal Article
Publication:	MATERIALS RESEARCH EXPRESS
Additional Information:	Copy right for this article belongs to the IOP PUBLISHING LTD, TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering Division of Electrical Sciences > Electrical Communication Engineering > Electrical Communication Engineering - Technical Reports
Date Deposited:	01 Dec 2017 06:49
Last Modified:	01 Dec 2017 06:49
URI:	http://eprints.iisc.ac.in/id/eprint/58366

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