TY - GEN
T1 - Fabrication of carbon nanotube-coated fabric for highly sensitive pressure sensor
AU - Pyo, Soonjae
AU - Jo, Eunhwan
AU - Kwon, Dae Sung
AU - Kim, Wondo
AU - Chang, Wook
AU - Kim, Jongbaeg
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/7/26
Y1 - 2017/7/26
N2 - We have developed a highly sensitive pressure sensor using carbon nanotube (CNT)-coated polyester fabric. With simple and cost-effective dip-coating process using CNT ink, we produced conductive polyester fabric, and its resistance could be controlled easily by modulating dipping number. When the pressure is applied, the highly porous structure of the fabric allows the dramatic improvement of the mechanical contacts between fibers, leading to more electrical contacts in the CNT networks. The fabric also showed high mechanical flexibility and robustness against bending, without any significant electrical degradation. We observed a decrease in resistance of the fabricated sensor under external pressure and the maximum sensitivity of the sensor reached ∼10.63%/kPa for pressure up to 10kPa, which is two orders of magnitude higher than that of the existing CNT-polymer composite-based pressure sensors. The proposed sensor could serve as a flexible and cheap pressure sensing solution for wearable electronics or human-machine interface.
AB - We have developed a highly sensitive pressure sensor using carbon nanotube (CNT)-coated polyester fabric. With simple and cost-effective dip-coating process using CNT ink, we produced conductive polyester fabric, and its resistance could be controlled easily by modulating dipping number. When the pressure is applied, the highly porous structure of the fabric allows the dramatic improvement of the mechanical contacts between fibers, leading to more electrical contacts in the CNT networks. The fabric also showed high mechanical flexibility and robustness against bending, without any significant electrical degradation. We observed a decrease in resistance of the fabricated sensor under external pressure and the maximum sensitivity of the sensor reached ∼10.63%/kPa for pressure up to 10kPa, which is two orders of magnitude higher than that of the existing CNT-polymer composite-based pressure sensors. The proposed sensor could serve as a flexible and cheap pressure sensing solution for wearable electronics or human-machine interface.
KW - Carbon nanotube (CNT)
KW - contact-based sensor
KW - fabric
KW - porous structure
KW - pressure sensor
UR - http://www.scopus.com/inward/record.url?scp=85029369236&partnerID=8YFLogxK
U2 - 10.1109/TRANSDUCERS.2017.7994210
DO - 10.1109/TRANSDUCERS.2017.7994210
M3 - Conference contribution
AN - SCOPUS:85029369236
T3 - TRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems
SP - 962
EP - 965
BT - TRANSDUCERS 2017 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 19th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2017
Y2 - 18 June 2017 through 22 June 2017
ER -