DC Conductivity and Spectroscopic Characterization of Poly (o-toluidine) Doped with Binary Dopant ZrOCl₂/AgI

Kiran Kumari, Vazid Ali, Gita Rani, Sushil Kumar, G.B.V.S. Lakshmi, M. Zulfequar

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DOI: 10.4236/msa.2011.28142                

Abstract

Aqueous binary dopant (ZrOCl₂/AgI) is used in different ratio such as 1:1, 1:2 and 2:1 (w/w) for chemical doping to enhance the conductivity of synthesized Poly (o-toluidine) (POT). The doping of Poly (o-toluidine) is carried out using tetrahydrofuran as solvent. Doped samples are characterized using various techniques such as I-V characteristics, UV-Visible spectroscopy, X-ray diffractometry (XRD), FTIR and Photoluminescence (PL) studies. A significant enhancement in DC conductivity has been observed with the introduction of binary dopant. UV-Visible study shows that optical parameters change considerably after doping. Interestingly, both direct and indirect band gaps are observed in the doped samples. XRD patterns show the semi-crystalline nature of doped Poly (o-toluidine). FTIR study shows structural modifications in functional groups with doping in POT. A Photolyminescence spectrum exhibits the emission properties of the samples.

Keywords

Poly (O-Toluidine), Dc Conductivity, UV-Visible Study, X-Ray Diffraction, FT-IR And Photoluminescence Studies

Conflicts of Interest

The authors declare no conflicts of interest.

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