Abstract
We report newly designed pressure and displacement capacitive sensors based on a flexible paper–CNT structure. The carbon nanotube (CNT) powder was deposited on a thin paper substrate and was pressed at an elevated temperature. The sheet resistance of the paper–CNT films was in the range of 2–4 kΩ/cm2. The paper–CNT films were used to fabricate pressure and displacement sensors. The sensitivities of the pressure and the displacement sensors were found to be 17.3 pF·m2/kN and 0.93 10−3 pF/μm, respectively. The experimental results were compared with the simulated data and they found good agreement with each other.
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