TY - JOUR
T1 - Pattern Directive Sensing Selectivity of Graphene for Wearable Multifunctional Sensors via Femtosecond Laser Fabrication
AU - Ye, Xiaohui
AU - Qi, Ming
AU - Yang, Yifan
AU - Yu, Miao
AU - Huang, Ting
AU - Zhang, Jinying
AU - Yuan, Xuebing
AU - Suo, Guoquan
AU - Hou, Xiaojiang
AU - Feng, Lei
AU - Zhang, Li
AU - Yang, Yanling
N1 - Funding Information:
The authors greatly thank the funding support by the National Natural Science Foundation of China (Grant Nos. 61705125, 51704188, and 51702199), Natural Science Foundation of Shaanxi Provincial Department of Education (Grant No. 2019JQ‐233), and Open Fund of Guangxi Key Laboratory of Processing for Non‐Ferrous Metals and Featured Materials (Grant No. 2019GXYSOF10).
Funding Information:
The authors greatly thank the funding support by the National Natural Science Foundation of China (Grant Nos. 61705125, 51704188, and 51702199), Natural Science Foundation of Shaanxi Provincial Department of Education (Grant No. 2019JQ-233), and Open Fund of Guangxi Key Laboratory of Processing for Non-Ferrous Metals and Featured Materials (Grant No. 2019GXYSOF10).
Publisher Copyright:
© 2020 Wiley-VCH GmbH
PY - 2020/11
Y1 - 2020/11
N2 - Graphene has great potential in wearable sensors. However, the sensing selectivity of graphene-based sensors is still a big challenge, limiting their application in the multifunctional sensors. Herein, different types and distributions of defects are introduced into graphene by femtosecond laser patterning to realize sensing selectivity for wearable multifunctional sensors. The imperfect graphene with four pattern arrays, circle, square, triangle, and hexagon with none, right, acute, and obtuse angle, is fabricated by laser to control the types and distributions of defects. The graphene with different patterns shows remarkable sensing selectivity, owing to the dangling bonds and vacancies on the edge of patterns. The graphene-based sensor with the circle pattern array is used to detect the strain variation; the triangle one is for temperature detection; and the hexagon one can collect the information of gas. The gauge factor is demonstrated to be as high as ≈104. The as-produced sensor with the above-mentioned four patterns can simultaneously detect body pulse, temperature, and harmful gas by attaching to human body or clothes, offering real-time health monitoring and protection. The patterned graphene-based sensors with high sensing selectivity are expected to develop multifunctional sensor platform and versatile artificial electronic skin.
AB - Graphene has great potential in wearable sensors. However, the sensing selectivity of graphene-based sensors is still a big challenge, limiting their application in the multifunctional sensors. Herein, different types and distributions of defects are introduced into graphene by femtosecond laser patterning to realize sensing selectivity for wearable multifunctional sensors. The imperfect graphene with four pattern arrays, circle, square, triangle, and hexagon with none, right, acute, and obtuse angle, is fabricated by laser to control the types and distributions of defects. The graphene with different patterns shows remarkable sensing selectivity, owing to the dangling bonds and vacancies on the edge of patterns. The graphene-based sensor with the circle pattern array is used to detect the strain variation; the triangle one is for temperature detection; and the hexagon one can collect the information of gas. The gauge factor is demonstrated to be as high as ≈104. The as-produced sensor with the above-mentioned four patterns can simultaneously detect body pulse, temperature, and harmful gas by attaching to human body or clothes, offering real-time health monitoring and protection. The patterned graphene-based sensors with high sensing selectivity are expected to develop multifunctional sensor platform and versatile artificial electronic skin.
KW - E-skins
KW - femtosecond laser
KW - graphene-based sensors
KW - pattern arrays
KW - sensing selectivity
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U2 - 10.1002/admt.202000446
DO - 10.1002/admt.202000446
M3 - Article
AN - SCOPUS:85089870845
VL - 5
JO - Advanced Materials Technologies
JF - Advanced Materials Technologies
SN - 2365-709X
IS - 11
M1 - 2000446
ER -