초록 |
The realization of wearable electronic devices that operate under mechanical strain is essential for the next generation of smart electronic application. Here, We fabricated transparent and flexible capacitive pressure sensors with composite of Poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) and 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)amide ([EMI][TFSA]). Also, this ion-gel films are incorporated with graphene electrodes for flexibility and transparency. This capacitive sensors have superior pressure-sensing performance, with a broad sensing range from a few pascals up to 20 kPa, with fast response times of < 30 ms and a low operating voltage of 1 V. |