Wearable piezoresistive strain sensor based on graphene-coated three-dimensional micro-porous PDMS sponge

被引：41

作者：

Jung, Young ^{[1
,2
]}

Jung, Kyungkuk ^{[2
,3
]}

Park, Byunggeon ^{[1
,2
]}

Choi, Jaehyuk ^{[2
]}

Kim, Donghwan ^{[2
]}

Park, Jinhyoung ^{[4
]}

Ko, Jongsoo ^{[2
]}

Cho, Hanchul ^{[1
]}

机构：

[1] Korea Inst Ind Technol, Precis Machining Control Grp, 42-7,Baegyang Daero 804beon Gil, Busan 46938, South Korea

[2] Pusan Natl Univ, Grad Sch Mech Engn, Busandaehak Ro 63beon Gil, Busan 46241, South Korea

[3] Korea Marine Equipment Res Inst KOMERI, Energy & Marine Res Div, Atmospher Environm Res Ctr, Busan, South Korea

[4] Korea Inst Ind Technol, Mechatron Technol Convergence R&D Grp, 320 Techno Sunhwan Ro, Daegu 42994, South Korea

来源：

MICRO AND NANO SYSTEMS LETTERS | 2019年 / 7卷 / 01期

关键词：

Graphene; PDMS; Strain sensor; Porous sponge; PRESSURE; POLYDIMETHYLSILOXANE;

D O I：

10.1186/s40486-019-0097-2

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We present a highly elastic and wearable piezoresistive strain sensor based on three-dimensional, micro-porous graphene-coated polydimethylsiloxane (PDMS) sponge suitable for being attached on human skin. The proposed strain sensors are simply fabricated by a sugar templating process and dip coating method based graphene ink in a facile and cost effective manner. The fabricated graphene-coated PDMS sponge shows highly stable mechanical properties in various tensile stress-strain test. A graphene thin film coated onto the backbone of PDMS sponges is used as the sensing materials of piezoresisitve strain sensors. The changes in resistance of the devices are highly stable, repeatable, and reversible when various strain is applied. Furthermore, the strain sensors show excellent sensing performance under different strain rate and mechanically robustness enough to be worked stably under repeated loads without any degradation.

引用

页数：9