期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 8, 期 33, 页码 11468-11476出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0tc00443j
关键词
-
资金
- National Science Foundation of China [51573136, 51103101]
A flexible and highly sensitive capacitive sensor capable of detecting pressure over a wide range was prepared using an elastomeric dielectric layer with high porosity and air gaps sandwiched between conducting polymer/filter paper electrodes. Porous polydimethylsiloxane (PDMS) with air gaps (i.e.through holes) was prepared by using NaCl powders and an array of metal pins as a template during the curing process. An as-fabricated capacitive sensor based on the PDMS layer with similar to 60% porosity and an array of 6 x 6 air gaps with diameters of similar to 850 mu m showed high sensitivity for the pressure range from similar to 5 Pa to 1 MPa, a quick response time and good durability. Potential applications of the capacitive pressure sensor in human motion monitoring and spatial pressure mapping were demonstrated.
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