Issue

Vol. 14 (2022)

Morphological Engineering of Sensing Materials for Flexible Pressure Sensors and Artificial Intelligence Applications

https://doi.org/10.1007/s40820-022-00874-w
Zhengya Shi
School of Materials Science and Engineering, Henan Key Laboratory of Advanced Nylon Materials and Application, Henan Innovation Center for Functional Polymer Membrane Materials, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
Lingxian Meng
School of Materials Science and Engineering, Henan Key Laboratory of Advanced Nylon Materials and Application, Henan Innovation Center for Functional Polymer Membrane Materials, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
Xinlei Shi
Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 352001, People’s Republic of China
Hongpeng Li
School of Mechanical Engineering, Yangzhou University, Yangzhou 225127, People’s Republic of China
Juzhong Zhang
School of Materials Science and Engineering, Henan Key Laboratory of Advanced Nylon Materials and Application, Henan Innovation Center for Functional Polymer Membrane Materials, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
Qingqing Sun
School of Materials Science and Engineering, Henan Key Laboratory of Advanced Nylon Materials and Application, Henan Innovation Center for Functional Polymer Membrane Materials, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
Xuying Liu
School of Materials Science and Engineering, Henan Key Laboratory of Advanced Nylon Materials and Application, Henan Innovation Center for Functional Polymer Membrane Materials, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
Jinzhou Chen
School of Materials Science and Engineering, Henan Key Laboratory of Advanced Nylon Materials and Application, Henan Innovation Center for Functional Polymer Membrane Materials, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
Shuiren Liu
School of Materials Science and Engineering, Henan Key Laboratory of Advanced Nylon Materials and Application, Henan Innovation Center for Functional Polymer Membrane Materials, Zhengzhou University, Zhengzhou 450001, People’s Republic of China

Corresponding Author: Shuiren Liu

lsrzzdx@zzu.edu.cn

Nano-Micro Letters, Vol. 14 (2022), Article Number: 141

Abstract

As an indispensable branch of wearable electronics, flexible pressure sensors are gaining tremendous attention due to their extensive applications in health monitoring, human –machine interaction, artificial intelligence, the internet of things, and other fields. In recent years, highly flexible and wearable pressure sensors have been developed using various materials/structures and transduction mechanisms. Morphological engineering of sensing materials at the nanometer and micrometer scales is crucial to obtaining superior sensor performance. This review focuses on the rapid development of morphological engineering technologies for flexible pressure sensors. We discuss different architectures and morphological designs of sensing materials to achieve high performance, including high sensitivity, broad working range, stable sensing, low hysteresis, high transparency, and directional or selective sensing. Additionally, the general fabrication techniques are summarized, including self-assembly, patterning, and auxiliary synthesis methods. Furthermore, we present the emerging applications of high-performing microengineered pressure sensors in healthcare, smart homes, digital sports, security monitoring, and machine learning-enabled computational sensing platform. Finally, the potential challenges and prospects for the future developments of pressure sensors are discussed comprehensively.


Highlights:


1 Various morphological structures in pressure sensors with the resulting advanced sensing properties are reviewed comprehensively.
2 Relevant manufacturing techniques and intelligent applications of pressure sensors are summarized in a complete and interesting way.
3 Future challenges and perspectives of flexible pressure sensors are critically discussed.

Keywords

Flexible pressure sensor Morphological engineering Sensing performance Manufacturing technique Artificial intelligence
Shi, Zhengya, Lingxian Meng, Xinlei Shi, Hongpeng Li, Juzhong Zhang, Qingqing Sun, Xuying Liu, Jinzhou Chen, and Shuiren Liu. 2022. “Morphological Engineering of Sensing Materials for Flexible Pressure Sensors and Artificial Intelligence Applications”. Nano-Micro Letters 14 (July):141. https://doi.org/10.1007/s40820-022-00874-w.
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