DataVXACS Applied Materials & InterfacesPaper
journal article·2022-07-20

Vertical Graphene Canal Mesh for Strain Sensing with a Supereminent Resolution

Yifei Ma, Zijian Li, Jiemin Han, Linhan Li, Mei Wang, Zhaomin Tong, Jonghwan Suhr, Liantuan Xiao, Suotang Jia, Xuyuan Chen

ACS Applied Materials & Interfaces· Volume 14· Issue 28
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Source abstract

Abstract

The development of microstrain sensors offers significant prospects in diverse applications, such as microrobots, intelligent human-computer interaction, health monitoring, and medical rehabilitation. Among strain sensor materials, vertical graphene (VG) has demonstrated considerable potential as a resistive material; however, VG-based strain sensors with high resolution are yet to be developed. In addition, the detection mechanism of VG has not been extensively investigated. Herein, we developed a VG canal mesh (VGCM) to fabricate a flexible strain sensor for ultralow strain sensing, achieving an accurate response to strains as low as 0.1‰ within a total strain range of 0%-4%. The detection of such low strains is due to the rigorous structural design and strain concentration effect of the three-dimensional micronano structure of the VGCM. Through experimental results and theoretical simulation, the evolution of microcracks in VG and the sensing mechanism of VG and VGCM are elaborated, and the unique advantages of VGCM are revealed. Finally, the VGCM-based strain sensors are proposed as portable breathing test equipment for rapid breathing detection.
Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials

OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Gas Sensing Nanomaterials and Sensors · Analytical Chemistry and Sensors

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China

Department of Polymer Science and Engineering, School of Mechanical Engineering, Sungkyunkwan University, 16419 Suwon, Republic of Korea

Faculty of Technology, Natural Sciences and Maritime Sciences, Department of Microsystems, University of Southeast Norway, Borre N-3184, Norway

Funding

Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China · Shanxi Scholarship Council of China · Higher Education Discipline Innovation Project · Key Research and Development Program of Shanxi Province for International Cooperation · Changjiang Scholars and Innovative Research Team in University of Ministry of Education of China · Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi · Fund for Shanxi ?1331 Project?

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