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Characterization of electrosynthesized conjugated polymer-carbon nanotube composite: Optical nonlinearity and electrical property.


Citation

Bahrami, Afarin and Talib, Zainal Abidin and Shahriari, Esmaeil and Mat Yunus, Wan Mahmood and Kassim, Anuar and Behzad, Kasra (2012) Characterization of electrosynthesized conjugated polymer-carbon nanotube composite: Optical nonlinearity and electrical property. International Journal of Molecular Sciences, 13 (1). pp. 918-928. ISSN 1422-0067; ESSN:1422-0067

Abstract / Synopsis

The effects of multi-walled carbon nanotube (MWNT) concentration on the structural, optical and electrical properties of conjugated polymer-carbon nanotube composite are discussed. Multi-walled carbon nanotube-polypyrrole nanocomposites were synthesized by electrochemical polymerization of monomers in the presence of different amounts of MWNTs using sodium dodecylbenzensulfonate (SDBS) as surfactant at room temperature and normal pressure. Field emission scanning electron microscopy (FESEM) indicates that the polymer is wrapped around the nanotubes. Measurement of the nonlinear refractive indices (n(2)) and the nonlinear absorption (β) of the samples with different MWNT concentrations measurements were performed by a single Z-scan method using continuous wave (CW) laser beam excitation wavelength of λ = 532 nm. The results show that both nonlinear optical parameters increased with increasing the concentration of MWNTs. The third order nonlinear susceptibilities were also calculated and found to follow the same trend as n(2) and β. In addition, the conductivity of the composite film was found to increase rapidly with the increase in the MWNT concentration.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
DOI Number: https://doi.org/10.3390/ijms13010918
Publisher: MDPI
Keywords: Conducting polymers; Carbon nanotubes; Optical properties; Electrical characterization.
Depositing User: Nur Farahin Ramli
Date Deposited: 25 Jul 2013 10:08
Last Modified: 26 Aug 2015 10:01
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.3390/ijms13010918
URI: http://psasir.upm.edu.my/id/eprint/25083
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