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Controllable Graphene Wrinkle for a High-Performance Flexible Pressure Sensor

文献类型：期刊论文

作者Tang, Xinyue3,4; Yang, Weidong1; Yin, Shuran4; Tai, Guojun4; Su, Min4; Yang, Jin2; Shi, Haofei4; Wei, Dapeng3,4; Yang, Jun4
刊名ACS APPLIED MATERIALS & INTERFACES
出版日期2021-05-05
卷号13期号:17页码:20448-20458
ISSN号1944-8244
关键词controllable wrinkle graphene-nanowalls flexible piezoresistivity sensor E-skin robotics
DOI10.1021/acsami.0c22784
通讯作者Wei, Dapeng(dpwei@cigit.ac.cn) ; Yang, Jun(jyang@cigit.ac.cn)
英文摘要Flexible pressure sensors have aroused tremendous attention, owing to their broad applications in healthcare, robotics, and prosthetics. So far, it remains a critical challenge to develop low-cost and controllable microstructures for flexible pressure sensors. Herein, a high-sensitivity and low-cost flexible piezoresistive sensor was developed by combining a controllable graphene-nanowalls (GNWs) wrinkle and a polydimethylsiloxane (PDMS) elastomer. For the GNWs-PDMS bilayer, the vertically grown GNWs film can effectively improve the interface strength and form delamination-free conformal wrinkles. More importantly, a controllable microstructure can be easily tuned through the thermal wrinkling method. The wrinkled graphene-nanowalls (WG) piezoresistive sensor has a high sensitivity (S = 59.0 kPa(-1) for the 0-2 kPa region and S = 4.8 kPa(-1) for the 2-20 kPa region), a fast response speed (<6.9 ms), and a low limit of detection (LOD) of 2 mg (similar to 0.2 Pa). The finite element method was used to analyze the working mechanism of the sensor, which revealed that the periods of the wrinkles play a dominant role in the performances of the sensors. These prominent merits enable wrinkled graphene sensors to successfully detect various signals from a weak stimulus to large pressures, for example, the detection of weak gas and plantar pressure. Furthermore, object manipulation, tactile imaging, and braille recognition applications have been demonstrated, showing their great potential in prosthetics limbs and intelligent robotics.
资助项目National Natural Science Foundation of China[NSFC 61504148] ; Natural Science Foundation of Chongqing[cstc2020jcyj-msxmX1041] ; Natural Science Foundation of Chongqing[cstc2019jcyj-msxmX0574] ; Youth Innovation Promotion Association of CAS[2021382] ; Chongqing Talents Program[CQYC2020030146]
WOS研究方向Science & Technology - Other Topics ; Materials Science
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:000648552500087
源URL[http://119.78.100.138/handle/2HOD01W0/13580]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Wei, Dapeng; Yang, Jun
作者单位1.Tongji Univ, Sch Aerosp Engn & Appl Mech, Shanghai 200092, Peoples R China
2.Chongqing Univ, Dept Optoelect Engn, Chongqing 400044, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
推荐引用方式
GB/T 7714		 Tang, Xinyue,Yang, Weidong,Yin, Shuran,et al. Controllable Graphene Wrinkle for a High-Performance Flexible Pressure Sensor[J]. ACS APPLIED MATERIALS & INTERFACES,2021,13(17):20448-20458.
APA Tang, Xinyue.,Yang, Weidong.,Yin, Shuran.,Tai, Guojun.,Su, Min.,...&Yang, Jun.(2021).Controllable Graphene Wrinkle for a High-Performance Flexible Pressure Sensor.ACS APPLIED MATERIALS & INTERFACES,13(17),20448-20458.
MLA Tang, Xinyue,et al."Controllable Graphene Wrinkle for a High-Performance Flexible Pressure Sensor".ACS APPLIED MATERIALS & INTERFACES 13.17(2021):20448-20458.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

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