D.C. conductivity and spectroscopic studies of polyaniline doped with binary dopant ZrOCl2/AgI |
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| Authors: | KIRAN KUMARI VAZID ALI ANAND KUMAR SUSHIL KUMAR M ZULFEQUAR |
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| Affiliation: | 1.Department of Chemistry,Chaudhary Devi Lal University,Sirsa,India;2.Department of Physics,Chaudhary Devi Lal University,Sirsa,India;3.Department of Physics,Jamia Millia Islamia (Central University),New Delhi,India |
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| Abstract: | Aqueous binary dopant (ZrOCl2/AgI) is used in different ratios such as 1:1, 1:2 and 2:1 (w/w) for chemical doping to enhance the conductivity of synthesized polyaniline (PANI). The doping of polyaniline is carried out using tetrahydrofuran as a 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 d.c. 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 bandgaps are observed in the doped samples. XRD patterns show the semi-crystalline nature of doped polyaniline. FTIR study shows structural modifications in functional groups with doping in PANI. Photoluminescence spectra exhibit emission properties of the samples. |
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