Linearly Sensitive and Flexible Pressure Sensor Based on Porous Carbon Nanotube/Polydimethylsiloxane Composite Structure

被引：33
|
作者：
Jung, Young [1 ,2 ]
Jung, Kyung Kuk [3 ]
Kim, Dong Hwan [1 ]
Kwak, Dong Hwa [1 ]
Ko, Jong Soo [1 ]
机构：
[1] Pusan Natl Univ, Grad Sch Mech Engn, Busandaehak Ro 63beon Gil, Busan 46241, South Korea
[2] Korea Inst Ind Technol, Precis Mech Proc & Control R&D Grp, 42-7 Baegyang Daero 804beon Gil, Busan 46938, South Korea
[3] Korea Marine Equipment Res Inst, Qual & Stand Dept, 435 Haeyang Ro, Busan 49111, South Korea
来源：
POLYMERS | 2020年 / 12卷 / 07期
基金：
新加坡国家研究基金会;
关键词：
flexible pressure sensors; carbon nanotubes; linear sensitivity; composite; porous structure; SPONGE; RUBBER;
D O I：
10.3390/polym12071499
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
We developed a simple, low-cost process to fabricate a flexible pressure sensor with linear sensitivity by using a porous carbon nanotube (CNT)/polydimethylsiloxane (PDMS) composite structure (CPCS). The working principle of this pressure sensor is based on the change in electrical resistance caused by the contact/non-contact of the CNT tip on the surface of the pores under pressure. The mechanical and electrical properties of the CPCSs could be quantitatively controlled by adjusting the concentration of CNTs. The fabricated flexible pressure sensor showed linear sensitivity and excellent performance with regard to repeatability, hysteresis, and reliability. Furthermore, we showed that the sensor could be applied for human motion detection, even when attached to curved surfaces.
引用
收藏
页码：1 / 12
页数：12
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