Dielectric Properties of 1-ethyl-3-methyl-imidazolium Tetrafluoroborate (EMIM-BF4) Using Cole-Cole Relaxation Model
Journal Title: Physical Science International Journal - Year 2017, Vol 13, Issue 3
Abstract
The Cole-Cole relaxation equations were derived from the Debye equation. The dielectric constant ε^' and loss factor ε^'' of EMIM-BF4 were fitted using the derived equations at temperature range of 5℃ to 65℃ and frequency range of 0.1GHz to 10GHz. The result obtained shows that the dielectric constant and loss factor of EMIM-BF4 were higher at low frequency (i.e. f=0.1GHz) and decrease as the frequency increases. The dielectric constant also increases with increase in the temperature except at 0.1GHz. At 15°C there was a sudden increase in the dielectric constant especially as the frequency increases beyond 5GHz. This sudden increase in the dielectric constant of EMIM-BF4 may be due to the phase change of EMIM-BF4. The loss factor of EMIM-BF4 was generally small for all frequencies and temperatures. This may be due to the fact that EMIM-BF4 consumed less energy when subjected to an applied field.
Authors and Affiliations
T. J. Ikyumbur, E. N. Asagha, J. A. Bash
Keywords
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- EP ID EP321132
- DOI 10.9734/PSIJ/2017/31315
- Views 73
- Downloads 0
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