Wearable Self-Powered Pressure-Sensing Device Based on a Combination of Carbon Nanotubes/Porous Poly(dimethylsiloxane) and Poly(ethylene oxide)
- Title
- Wearable Self-Powered Pressure-Sensing Device Based on a Combination of Carbon Nanotubes/Porous Poly(dimethylsiloxane) and Poly(ethylene oxide)
- Author
- 오제훈
- Keywords
- capacitive pressure sensor; triboelectric nanogenerator (TENG); self-powered device; dual-functionality; porous PDMS; carbon nanotube (CNT)
- Issue Date
- 2024-02-23
- Publisher
- AMER CHEMICAL SOC
- Citation
- ACS APPLIED NANO MATERIALS, v. 7, NO 5, Page. 5040-5050
- Abstract
- The development of technologies such as artificial intelligence and the Internet of Things has increased the demand for wearable, self-powered pressure sensors. Triboelectric nanogenerator (TENG)-based self-powered pressure sensors have emerged as a solution to meet this demand. However, the measurement of static and small pressure ranges remains a challenge. In this paper, we propose a self-powered pressure-sensing device based on the combination of carbon nanotube (CNT)/porous poly(dimethylsiloxane) (PDMS) composite and poly(ethylene oxide) (PEO) film. The proposed device could continuously and reliably measure static and small-range pressure through capacitive pressure sensing while harvesting energy based on the triboelectric effect. The device exhibited a remarkable sensitivity of 1.37 kPa-1 due to the incorporation of high-k materials (i.e., CNTs, a nanosized filler) in its porous structure and dielectric layer. It also had a power density of 15 mW/m2 due to the triboelectric interaction between PDMS and PEO. Finally, the fabricated device was connected to a microcontroller unit to perform energy harvesting and pressure sensing simultaneously, demonstrating its great potential as a wearable device.
- URI
- https://information.hanyang.ac.kr/#/eds/detail?an=edselc.2-52.0-85186215085&dbId=edselchttps://repository.hanyang.ac.kr/handle/20.500.11754/190126
- ISSN
- 2574-0970
- DOI
- 10.1021/acsanm.3c05793
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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