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Zhang Y, Xiao Y, Xu Y, Zhang S, Qu C, Liu H, Huang K, Shao H. Wrinkle Clamp Down on Structure Crack Strain Sensor Based on High Poisson's Ratio Material for Home Health Monitoring and Human-Machine Interaction. ACS Appl Mater Interfaces 2023. [PMID: 37341485 DOI: 10.1021/acsami.3c05281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/22/2023]
Abstract
Flexible wearable crack strain sensors are currently receiving significant attention because they can be used in a wide range of physiological signal monitoring and human-machine interaction applications. However, sensors with high sensitivity, great repeatability, and wide sensing range remain challenging. Herein, a tunable wrinkle clamp down structure (WCDS) crack strain sensor based on high Poisson's ratio material with high sensitivity, high stability, and wide strain range is proposed. Based on the high Poisson's ratio of the acrylic acid film, the WCDS was prepared by a prestretching process. The wrinkle structures can clamp down the crack to improve the cyclic stability of the crack strain sensor while maintaining its high sensitivity. Moreover, the tensile properties of the crack strain sensor are improved by introducing wrinkles in the bridge-like gold stripes connecting each separated gold flake. Owing to this structure, the sensitivity of the sensor can reach 3627, stable operation over 10 000 cycles is achieved, and the strain range can reach about 9%. In addition, the sensor exhibits low dynamic response and good frequency characteristics. Because of its demonstrated excellent performance, the strain sensor can be used in pulse wave and heart rate monitoring, as well as posture recognition and game control.
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Affiliation(s)
- Yuanlong Zhang
- Institution of Semiconductors, Chinese Academy of Sciences, Beijing 100089, China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Beijing Key Laboratory of Inorganic Stretchable and Flexible Information Technology, Beijing 100083, China
| | - Yu Xiao
- Institution of Semiconductors, Chinese Academy of Sciences, Beijing 100089, China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Beijing Key Laboratory of Inorganic Stretchable and Flexible Information Technology, Beijing 100083, China
| | - Yun Xu
- Institution of Semiconductors, Chinese Academy of Sciences, Beijing 100089, China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Beijing Key Laboratory of Inorganic Stretchable and Flexible Information Technology, Beijing 100083, China
| | - Shaochun Zhang
- Institution of Semiconductors, Chinese Academy of Sciences, Beijing 100089, China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Beijing Key Laboratory of Inorganic Stretchable and Flexible Information Technology, Beijing 100083, China
| | - Changming Qu
- Institution of Semiconductors, Chinese Academy of Sciences, Beijing 100089, China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Beijing Key Laboratory of Inorganic Stretchable and Flexible Information Technology, Beijing 100083, China
| | - Hanyun Liu
- Institution of Semiconductors, Chinese Academy of Sciences, Beijing 100089, China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Beijing Key Laboratory of Inorganic Stretchable and Flexible Information Technology, Beijing 100083, China
| | - Kai Huang
- Institution of Semiconductors, Chinese Academy of Sciences, Beijing 100089, China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Beijing Key Laboratory of Inorganic Stretchable and Flexible Information Technology, Beijing 100083, China
| | - Hanxiao Shao
- Institution of Semiconductors, Chinese Academy of Sciences, Beijing 100089, China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Beijing Key Laboratory of Inorganic Stretchable and Flexible Information Technology, Beijing 100083, China
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