Camphor sulfonic acid (CSA) doped polypyrrole (PPy) films: Measurement of microstructural and optoelectronic properties |
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| Affiliation: | 1. Functional Materials Research Laboratory, School of Physical Sciences, Solapur University, Solapur 413255, MS, India;2. School of Physical Sciences,Solapur University, Solapur 413255, MS, India;3. VNIT, Nagpur, MS, India;1. School of Materials Science and Engineering, Zhengzhou University, 75 Daxue Road, Zhengzhou 450052, PR China;1. Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193 Barcelona, Spain;2. Technische Universität Chemnitz, Institut für Chemie, AG Elektrochemie, D-09107 Chemnitz, Germany;1. DST-CSIR National Centre for Nanostructured Materials, Council for Scientific and Industrial Research, Pretoria 0001, South Africa;2. Department of Applied Chemistry, University of Johannesburg, Doornfontein, 2028 Johannesburg, South Africa;1. Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, 162 06 Prague 6, Czech Republic;2. Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg 199004, Russian Federation;3. Faculty of Chemical Engineering, University of Chemistry and Technology Prague, 166 28 Prague 6, Czech Republic;4. Charles University Prague, Faculty of Mathematics and Physics, 121 16 Prague 2, Czech Republic;5. Department of Chemistry, Faculty of Science, University of Tanta, Tanta 31527, Egypt;1. School of Studies in Physics, Jiwaji University, Gwalior 474011, Madhya Pradesh, India;2. CSIR-Central Electronics Engineering Research Institute (CEERI), Pilani 333031, Rajasthan, India |
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| Abstract: | In this paper, camphor sulfonic acid doped polypyrrole have been successfully prepared using different weight percentages of camphor sulfonic acid (10–50%) dispersed in polypyrrole by solid state synthesis method. Films of CSA doped PPy were prepared by spin coating technique on a glass substrate. The effect of varying concentrations of CSA on the structure, morphology, optical and electrical properties of polypyrrole was explored using X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) atomic force microscopy (AFM), UV–visible spectroscopy and two probe technique respectively. The presence of CSA in PPy matrix and their interaction was confirmed by using XRD and FTIR techniques. The dramatic change in the surface morphology has been observed with increasing content of CSA in PPy matrix. The AFM study shows porous uniform globular morphology. The UV–vis spectra of CSA doped PPy film was found to shift to a lower wavelength side as compared to those of observed in PPy, indicating synergetic interaction between dopant CSA and PPy. CSA doped PPy not only can maintain a good solubility but also enhance the electrical conductivity. The results of dc electrical conductivity shows that, increase in electrical conductivity of PPy with increasing content of CSA (10–50%) in PPy matrix. |
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| Keywords: | Polypyrrole CSA Structural properties Optical properties Electrical properties |
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