My research project involves studying the properties of newly synthesised Liquid Crystal samples. I have been using the Solartron to measure the impedance and the Linkam to control the temperature. Every time I try to measure the impedance (10^-1Hz to 10^6Hz), I can get a clean curve (no noise) between 10^3Hz and 10^6Hz, however between 10^-1Hz and 10^3Hz the data points are just scattered with no apparent order. The thing is, some of my samples melt so then I just use the double ITO cells and the impedance is easily measured. However some of my samples are too viscous which means that I need to use single ITO cells with a teflon sheet separator between the two cells to avoid short circuit. I then use silver point and foil on both cells in order to measure impedance. For these samples I cannot get accurate data points at low frequencies. I am desperate as it is been months that I tried to analyse my viscous samples with no success. I wonder if anyone has a functioning technique to prepare solid samples that do not melt for conductivity/impedance measurements.
Your help is much appreciated!
Hello Umama Bendaoud , many thanks for sharing this very interesting technical question with the RG community. Perhaps I can suggest to you the following potentially useful article which might help you in your research:
Thermal and Frequency Stability of Dielectric Ceramic Ba6-3xNd8+2xTi18O54 (X=0.15, 0.25)
Research Thermal and Frequency Stability of Dielectric Ceramic Ba6-3x...
Good luck with your research work and best wishes.
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