Abstract
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.
| Original language | English |
|---|---|
| Article number | 495501 |
| Journal | Nanotechnology |
| Volume | 28 |
| Issue number | 49 |
| DOIs | |
| Publication status | Published - 2017 Nov 15 |
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Keywords
- gauge factor
- ITO
- nanoparticle
- strain sensor
- tin-doped indium oxide
ASJC Scopus subject areas
- Bioengineering
- Chemistry(all)
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
- Electrical and Electronic Engineering
Cite this
Highly sensitive and flexible strain sensors based on patterned ITO nanoparticle channels. / Lee, Do Hoon; Park, Jonghyurk; Lee, Jong Kwon; Heo, Kwang; Lee, Dong Jin; Lee, Ye Rim; Lee, Byung Yang.
In: Nanotechnology, Vol. 28, No. 49, 495501, 15.11.2017.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Highly sensitive and flexible strain sensors based on patterned ITO nanoparticle channels
AU - Lee, Do Hoon
AU - Park, Jonghyurk
AU - Lee, Jong Kwon
AU - Heo, Kwang
AU - Lee, Dong Jin
AU - Lee, Ye Rim
AU - Lee, Byung Yang
PY - 2017/11/15
Y1 - 2017/11/15
N2 - 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.
AB - 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.
KW - gauge factor
KW - ITO
KW - nanoparticle
KW - strain sensor
KW - tin-doped indium oxide
UR - http://www.scopus.com/inward/record.url?scp=85035343260&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85035343260&partnerID=8YFLogxK
U2 - 10.1088/1361-6528/aa9237
DO - 10.1088/1361-6528/aa9237
M3 - Article
AN - SCOPUS:85035343260
VL - 28
JO - Nanotechnology
JF - Nanotechnology
SN - 0957-4484
IS - 49
M1 - 495501
ER -