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The evaluation of Temperature effect on Peak-to-Peak Line Width (ΔHpp) of conjugating polymer Polypyrrole (Ppy)

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, , Citation Manahil E. Mofdal et al 2019 J. Phys.: Conf. Ser. 1178 012021 DOI 10.1088/1742-6596/1178/1/012021

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batoolen@uofallujah.edu.iq

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1 Department of physic, College of Science and Arts, Al Gassiam University, Uyin Aljiwa, SudiaArbia

2 Department of physic, faculty of Education, West Kordofan University, Sudan

3 Department of Medical Physics, College of Applied Sciences, University of Fallujah, Fallujah, Iraq

4 Department Physics, Faculty of Science, University Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia

5 Physics Department Umaru Musa Yar'dua Universitiys, Katsina, Nigeria

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1742-6596/1178/1/012021

Abstract

The magnetic properties of the neutral and doped polymer polypyrrole (Ppy) nanostructure has been successfully synthesize via chemical method. The nanostructured powder was investigated using electron spin resonance (ESR) measurements. The board ESR signal was attributed to the existence of unpaired electrons. The g-factor of pure Ppy decreased with increasing temperature while that of doped (Ppy) was found to increase linearly from 1.9504 to 1.9925 within a temperature range of 298K - 473 K. This could be due to polaron species formation. The current results demonstrated that polypyrrole (Ppy) could be considered as a good candidate for many applications especially in organic photovoltaic and gas sensors.

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10.1088/1742-6596/1178/1/012021