Back close

Ion beam irradiation as a tool to improve the ionic conductivity in solid polymer electrolyte systems

Publication Type : Conference Paper

Publisher : AIP Conference Proceedings, American Institute of Physics Inc.

Source : AIP Conference Proceedings, American Institute of Physics Inc., Volume 1728 (2016)

Url : https://www.scopus.com/inward/record.uri?eid=2-s2.0-84984535644&partnerID=40&md5=24f76fef71671c071df0c1f6f033dde1

ISBN : 9780735413757

Campus : Bengaluru

School : School of Engineering

Department : Physics

Year : 2016

Abstract : Solid polymer electrolytes (SPEs) have potential applications in solid state electronic and energy devices. The optimum conductivity of SPEs required for such applications is about 10-1-10-3 Scm-1, which is hard to achieve in these systems. It is observed that ionic conductivity of SPEs continuously increase with increasing concentration of inorganic salt in the host polymer. However, there is a critical concentration of the salt beyond which the conductivity of SPEs decreases due to the formation of ion pairs. In the present study, solid polymer thin films based on poly (ethylene oxide) (PEO) complexed with NaBr salt with different concentrations have been prepared and the concentration at which ion pair formation occurs in PEOxNaBr is identified. The microstructure of the SPE with highest ionic conductivity is modified by irradiating it with low energy O+1 ion (100 keV) of different fluencies. It is observed that the ionic conductivity of irradiated SPEs increases by one order in magnitude. The increase in ionic conductivity may be attributed to the enhanced segmental motion of the polymer chains due to radiation induced micro structural modification.

Cite this Research Publication : H. Manjunatha, Damle, Rb, and Kumaraswamy, G. N., “Ion beam irradiation as a tool to improve the ionic conductivity in solid polymer electrolyte systems”, in AIP Conference Proceedings, 2016, vol. 1728.

Admissions Apply Now