Ultrasensitive paper-based polyaniline/graphene composite strain sensor for Check sign language expression

Qian, Qiuping1,2; Wang, Yan3; Zhang, Min1; Chen, Limin1,2; Feng, Jie1,2; Wang, Yi1,2; Zhou, Yunlong1,2

2019-09-08

10.1016/j.compscitech.2019.05.017

COMPOSITES SCIENCE AND TECHNOLOGY   影响因子和分区

0266-3538

1879-1050

We report a facile, low cost and readily scalable method for the fabrication of a flexible paper-based strain sensor. Approaches of pen-writing, paper-transferring and elastomer-packaging were exploited to build a strain sensor with layered structures consisting of the graphene mesh and conductive polyaniline. The normalized conductivity change (Delta G/G(0)) and gauge factor could reach as high as 747 and 1.1 x 10 4 , respectively. The mechanism of ultra-high conductivity change was attributed to the formation of micro-disconnection and micro-cracking in the layered structure deduced by Raman imaging and a simulation based on equivalent resistor networks. As a proof of the concept, the strain devices were finally exploited in sign language recognition. Our work demonstrated a new strategy to create ultra-high sensitive communication devices for people with speech and hearing impairment.

SCI ; EI

英语

其他

Wenzhou Public Welfare Science and Technology Project[S20170015]

Materials Science

Materials Science, Composites

WOS:000479021000007

ELSEVIER SCI LTD

20192407037259

Audition ; Polyaniline ; Scalability ; Speech communication

Ergonomics and Human Factors Engineering:461.4 ; Conducting Materials:708.2 ; Speech:751.5 ; Pulp and Paper:811.1 ; Systems Science:961

MATERIALS SCIENCE

Web of Science

1.Wenzhou Med Univ, Sch Ophthalmol & Optometry, Sch Biomed Engn, Hosp Eye, Wenzhou 325000, Peoples R China
2.Univ Chinese Acad Sci, Wenzhou Inst, Engn Res Ctr Clin Funct Mat & Diag & Treatment De, Wenzhou 325000, Peoples R China
3.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China

Qian, Qiuping,Wang, Yan,Zhang, Min,et al. Ultrasensitive paper-based polyaniline/graphene composite strain sensor for Check sign language expression[J]. COMPOSITES SCIENCE AND TECHNOLOGY,2019,181.

Qian, Qiuping.,Wang, Yan.,Zhang, Min.,Chen, Limin.,Feng, Jie.,...&Zhou, Yunlong.(2019).Ultrasensitive paper-based polyaniline/graphene composite strain sensor for Check sign language expression.COMPOSITES SCIENCE AND TECHNOLOGY,181.

Qian, Qiuping,et al."Ultrasensitive paper-based polyaniline/graphene composite strain sensor for Check sign language expression".COMPOSITES SCIENCE AND TECHNOLOGY 181(2019).