文献类型：期刊文献

英文题名：Near-Linear Responsive and Wide-Range Pressure and Stretch Sensor Based on Hierarchical Graphene-Based Structures via Solvent-Free Preparation

作者：Wang, Jian[1,2];Suzuki, Ryuki[1];Ogata, Kentaro[1];Nakamura, Takuto[1];Dong, Aixue[2];Weng, Wei[1,3]

机构：[1]Keio Univ, Sch Integrated Design Engn, Ctr Mat Design Sci, 3-14-1 Hiyoshi, Yokohama, Kanagawa 2238522, Japan;[2]Shaoxing Univ, Coll Text & Garment, Shaoxing 312000, Peoples R China;[3]Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China

年份：2020

卷号：12

期号：8

外文期刊名：POLYMERS

收录：SCI-EXPANDED(收录号：WOS:000568089600001)、、EI(收录号：20203709170028)、Scopus(收录号：2-s2.0-85090413904)、WOS

基金：This research was partially supported by the [KLL Program Research Grant] grant number 000144, [Doctorate Student Grant-in-Aid Program], [Marubun Research Promotion Foundation], and the [Fundamental Research Funds for the Central Universities, DHU Distinguished Young Professor Program].

语种：英文

外文关键词：pressure sensor; stretch sensor; solvent-free; wearable devices; human motion detection

外文摘要：Flexible and wearable electronics have huge potential applications in human motion detection, human-computer interaction, and context identification, which have promoted the rapid development of flexible sensors. So far the sensor manufacturing techniques are complex and require a large number of organic solvents, which are harmful not only to human health but also to the environment. Here, we propose a facile solvent-free preparation toward a flexible pressure and stretch sensor based on a hierarchical layer of graphene nanoplates. The resulting sensor exhibits many merits, including near-linear response, low strain detection limits to 0.1%, large strain gauge factor up to 36.2, and excellent cyclic stability withstanding more than 1000 cycles. Besides, the sensor has an extraordinary pressure range as large as 700 kPa. Compared to most of the reported graphene-based sensors, this work uses a completely environmental-friendly method that does not contain any organic solvents. Moreover, the sensor can practically realize the delicate detection of human body activity, speech recognition, and handwriting recognition, demonstrating a huge potential for wearable sensors.