Ultrasensitive micro/nanocrack-based graphene nanowall strain sensors derived from the substrate's Poisson's ratio effect

doi:10.1039/d0ta02878a

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2020专题

	Ultrasensitive micro/nanocrack-based graphene nanowall strain sensors derived from the substrate's Poisson's ratio effect
	Sun, Hongyan ; Ye, Chen ; Zhao, Gang ; Zhang, Huan ; Liu, Zhiduo ; Dai, Wen ; Wang, Junjie ; Alam, Fakhr E.; Yan, Qingwei ; Li, Xinming
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2020
卷号	8 期号:20 页码:10310-10317
关键词	HIGH-PERFORMANCE PRESSURE SENSORS FILMS TRANSPARENT SKIN FABRICATION SENSITIVITY BEHAVIOR PLATFORM SPONGE
DOI	10.1039/d0ta02878a
英文摘要	Highly sensitive wearable strain sensors based on graphene and its derivatives have shown great potential to be applied in home monitoring and electronic skin. To date, it still remains a technical challenge to achieve a reliable performance with high responsiveness at a small elastic strain for graphene strain sensors. Here we demonstrate the fabrication of micro/nanocrack-based strain sensors by using a porous thin film composed of graphene nanowalls (GNWs), which showed ultrahigh sensitivity with a gauge factor up to approximate to 8.6 x 10(4) at 4% strain. The ultrahigh gauge factor at such a small deformation can be attributed to the synergistic effect of micro/nanocrack evolution of GNW building blocks derived from the substrate's Poisson's ratio effect. This working mechanism is distinct from the general case where the cracks were created in an initially continuous film. The wearable GNW strain sensors were functionally presented as audio analog-to-digital converters for acoustic signature recognition and electronic skin devices to monitor physiological signals from the human body at high resolution.
学科主题	Chemistry ; Energy & Fuels ; Materials Science
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20781]
专题	2020专题
作者单位	1.Lin, CT (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn NIMTE, Key Lab Marine Mat & Related Technol, Zhejiang Key Lab Marine Mat & Protect Technol, Ningbo 315201, Peoples R China. 2.Lin, CT (corresponding author), Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China. 3.Chen, D (corresponding author), Hunan Univ, Coll Mech & Vehicle Engn, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Peoples R China. 4.Wu, SD (corresponding author), Southern Univ Sci & Technol, Acad Adv Interdisciplinary Studies, Shenzhen 518055, Peoples R China.
推荐引用方式 GB/T 7714	Sun, Hongyan,Ye, Chen,Zhao, Gang,et al. Ultrasensitive micro/nanocrack-based graphene nanowall strain sensors derived from the substrate's Poisson's ratio effect[J]. JOURNAL OF MATERIALS CHEMISTRY A,2020,8(20):10310-10317.
APA	Sun, Hongyan.,Ye, Chen.,Zhao, Gang.,Zhang, Huan.,Liu, Zhiduo.,...&Lin, Cheng-Te.(2020).Ultrasensitive micro/nanocrack-based graphene nanowall strain sensors derived from the substrate's Poisson's ratio effect.JOURNAL OF MATERIALS CHEMISTRY A,8(20),10310-10317.
MLA	Sun, Hongyan,et al."Ultrasensitive micro/nanocrack-based graphene nanowall strain sensors derived from the substrate's Poisson's ratio effect".JOURNAL OF MATERIALS CHEMISTRY A 8.20(2020):10310-10317.