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A comparative study of structural, thermal and electrical properties of undoped and doped with dodecylbenzenesulphonic acid polypyrrole |
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| Authors: | Abdul Shakoor Tasneem Zahra Rizvi Hafiz Umer Farooq Najmul Hassan Abdul Majid Muhammad Saeed |
| Affiliation: | 1. Department of Physics Bahauddin Zakariya University, Multan, 60800, Pakistan 2. Physics Department, Quaid-i-Azam University, Islamabad, Pakistan, 45320 3. Physics Department, University of Hazara, Khyber Pukhtoon Khah, Pakistan 4. Physics Department, University of Gujrat, Punjab, Pakistan |
| Abstract: | Polypyrrole was synthesized and doped with dodecylbenzenesulphonic acid; the latter was confirmed by means of FTIR spectroscopy. The percentage of crystallinity of synthesized polymers was estimated from X-rays diffraction studies. The formation of flaky structure in doped polypyrrole was observed by means of SEM. DC conductivity was found to be influenced by dopant dodecylbenzenesulphonic acid. Temperature dependant DC shows three dimensional variable ranges hopping (3D VRH). Activation energy, density of states and hopping length were calculated and found to be influenced by adding dopant to polypyrrole. The doped polypyrrole was found to be more thermally stable as compared to that of pristine polypyrrole. |
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