Bioinspired fabrication of graphene/PDMS composite materials for high-performance flexible pressure sensor

IF 6.8 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Science China Materials Pub Date : 2025-03-11 DOI:10.1007/s40843-024-3267-9

Dandan Xu (, ), Peilin Zhou (, ), Haibo Yu (, ), Jianhang Chen (, ), Ya Zhong (, ), Hongji Guo (, ), Xiuli Zhang (, ), Yueqing Xia (, ), Guangrui Xiang (, ), Lianqing Liu (, )

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引用次数: 0

Abstract

Flexible pressure sensors show significant potential for applications in the fields of intelligent wearable devices, electronic skins, and health monitoring. However, the fast response saturation and high viscoelasticity of the flexible sensing materials often result in reduced sensitivity and increased response hysteresis, limiting the practical application of these sensors. Therefore, achieving flexible pressure sensors with both high sensitivity and wide detection range still remains great challenges. In this study, bioinspired by the forcesensitive sensing mechanism and physiological structure of human skin, we propose a low-cost flexible fabrication method for high-performance piezoresistive flexible pressure sensor based on graphene/polydimethylsiloxane (PDMS) composite materials. The results show that the sensor has an ultra-high sensitivity (321 kPa⁻¹), wide detection range (0.01–1000 kPa), fast response time (29 ms), and exhibits stability over 5000 cycles. In addition, the successful detections and applications indicate the wide application prospect of the developed sensor in fields of health monitoring, human-machine interactions and intelligent robotic perception.

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来源期刊

Science China Materials Materials Science-General Materials Science

CiteScore

11.40

自引率

7.40%

发文量

949

期刊介绍： Science China Materials (SCM) is a globally peer-reviewed journal that covers all facets of materials science. It is supervised by the Chinese Academy of Sciences and co-sponsored by the Chinese Academy of Sciences and the National Natural Science Foundation of China. The journal is jointly published monthly in both printed and electronic forms by Science China Press and Springer. The aim of SCM is to encourage communication of high-quality, innovative research results at the cutting-edge interface of materials science with chemistry, physics, biology, and engineering. It focuses on breakthroughs from around the world and aims to become a world-leading academic journal for materials science.