Towards ultra-wide operation range and high sensitivity: Graphene film based pressure sensors for fingertips

被引：31

作者：

Yue, Ziyu ^{[1
]}

Ye, Xingke ^{[1
]}

Liu, Shihong ^{[1
]}

Zhu, Yucan ^{[1
]}

Jiang, Hedong ^{[1
]}

Wan, Zhongquan ^{[1
]}

Lin, Yuan ^{[1
]}

Jia, Chunyang ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Elect Sci & Engn, State Key Lab Elect Thin Fihns & Integrated Devic, Chengdu 610054, Sichuan, Peoples R China

来源：

BIOSENSORS & BIOELECTRONICS | 2019年 / 139卷

基金：

中国国家自然科学基金;

关键词：

Pressure sensor; Graphene film; Wide range; High sensitivity; Electronic skin; CHEMICAL-REDUCTION; ELECTRONIC SKIN; STRAIN SENSOR; VITAMIN-C; OXIDE; TRANSPARENT;

D O I：

10.1016/j.bios.2019.05.001

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

Remarkable research efforts have been devoted to replicate the tactile sensitivity of human skin. Unfortunately, so far flexible pressure sensors reported barely fit the tactile requirements for fingertips, which could endure a pressure over 100 kPa and also can sense a gentle touch, It is vital to develop flexible pressure sensors which can ensure high sensitivity and wide operation range simultaneously, to satisfy the demands of mimicking the pressure sensing function of fingertips. In this work, a mini-size, light-weight but high-performance graphene film based pressure sensor is presented. Owing to the advanced structure with fluctuations on surface and fluffy-layered structure in cross-section of the graphene film, this pressure sensor shows an extraordinary performance of high sensitivity of 10.39 kPa(-l) (0-2 kPa), ultra-wide operation range up to 200 kPa, impressively stable repeatability, high working frequency, rapid response and recovery time. Moreover, the demonstrated results of the detection of traditional Chinese medicine wrist-pulse waveform and the bionic fingertip tactile sensors, suggest the great application potential of the obtain device in biomedical field and bionic skins field.

引用

页数：7

共 48 条

[11] Body-Attachable and Stretchable Multisensors Integrated with Wirelessly Rechargeable Energy Storage Devices [J].