상세정보
학술지
Highly Sensitive and Flexible Strain Sensors based on Patterned ITO Nanoparticle Channels
- 저자
- 이도훈, 박종혁, 이종권, 허광, 이동진, 이예림, 이병양
- 발행일
- 201711
- 출처
- Nanotechnology, v.28 no.49, pp.1-7
- ISSN
- 0957-4484
- 출판사
- Institute of Physics (IOP)
- 협약과제
- 17PB6300, 대면적 그래핀 기판을 이용한 저비용, 고품위의 III-V 나노와이어 발광소자 개발, 박종혁
- 초록
- We demonstrate a highly sensitive and flexible bending strain sensor using tin-doped indium oxide (ITO) nanoparticles (NPs) assembled in line patterns on flexible substrates. By utilizing transparent ITO NPs without any surface modifications, we could produce strain sensors with adjustable gauge factors and optical transparency. We were able to control the dimensional and electrical properties of the sensors, such as channel height and resistance, by controlling the NP assembly speed. Furthermore, we were able to generate controlled gauge factor with values ranging from 18 to 157, which are higher than previous cases using metallic Cr NPs and Au NPs. The alignment of the ITO NPs in parallel lines resulted in low crosstalk between the transverse and longitudinal bending directions. Finally, our sensor showed high optical transmittance, up to ~93% at 500 nm wavelength, which is desirable for flexible electronic applications.
- KSP 제안 키워드
- Au nanoparticles(Au-NPs), Bending strain sensor, Channel height, Flexible electronics, Flexible strain sensors, Flexible substrate, Gauge Factor, Highly sensitive, ITO nanoparticles, Low crosstalk, Optical transmittance