Lim, Seok Ju Lim, Hyun Su Joo, Yongho Jeon, Dae-Young 2024-01-19T16:04:00Z 2024-01-19T16:04:00Z 2021-09-02 2020-11-01 0924-4247 https://pubs.kist.re.kr/handle/201004/117866 Carbon nanotube (CNT) based physical sensors with high performance have been successfully applied to novel devices for human motion detection and healthcare monitoring. Here, porous multi-walled car-bon nanotube/polydimethylsiloxane MWCNT/PDMS composites with different MWCNT contents were fabricated via the water-oil emulsion state, and their impedance characteristics were investigated in detail. Intermediate MWCNT content induced both resistive and capacitive properties in the composites, while the composite with the highest MWCNT concentration showed resistive-dominant properties. In addition, an excellent piezo-impedance physical sensor using the MWCNT-loaded composites was demonstrated using an improved impedance sensing method. This work provides key information for realizing practical applications of MWCNT/PDMS composites. (c) 2020 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE SA INTERDIGITATED ELECTRODE ARRAYS STRAIN SENSORS FILMS Impact of MWCNT concentration on the piezo-impedance response of porous MWCNT/PDMS composites Article 10.1016/j.sna.2020.112332 1 SENSORS AND ACTUATORS A-PHYSICAL, v.315 SENSORS AND ACTUATORS A-PHYSICAL 315 scie scopus 000588260600002 2-s2.0-85091567479 Engineering, Electrical & Electronic Instruments & Instrumentation Engineering Instruments & Instrumentation Article INTERDIGITATED ELECTRODE ARRAYS STRAIN SENSORS FILMS Porous MWCNT/PDMS composite Impedance analysis Physical sensors MWCNT concentration Impedance sensing method