DOI: 10.1016/j.scib.2020.05.002
论文题名: High conductive graphene assembled films with porous micro-structure for freestanding and ultra-low power strain sensors
作者: Wang Z. ; Li P. ; Song R. ; Qian W. ; Zhou H. ; Wang Q. ; Wang Y. ; Zeng X. ; Ren L. ; Yan S. ; Mu S. ; He D.
刊名: Science Bulletin
ISSN: 20959273
出版年: 2020
卷: 65, 期: 16 起始页码: 1363
结束页码: 1370
语种: 英语
中文关键词: Freestanding
; Graphene assembled film
; High conductivity
; Strain sensor
; Ultra-low power consumption
英文关键词: Carbon nanotubes
; Electric power utilization
; Energy conservation
; Substrates
; Electronic device
; Fabrication process
; Flexible substrate
; High conductivity
; Increasing temperatures
; Macroscopic materials
; Sensitive materials
; Ultra-low power consumption
; Graphene
英文摘要: Graphene emerges as an ideal material for constructing high-performance strain sensors, due to its superior mechanical property and high conductivity. However, in the process of assembling graphene into macroscopic materials, its conductivity decreases significantly. Also, tedious fabrication process hinders the application of graphene-based strain sensors. In this work, we report a freestanding graphene assembled film (GAF) with high conductivity ((2.32 ± 0.08) × 105 S m−1). For the sensitive materials of strain sensors, it is higher than most of reported carbon nanotube and graphene materials. These advantages enable the GAF to be an ultra-low power consumption strain sensor for detecting airflow and vocal vibrations. The resistance of the GAF remains unchanged with increasing temperature (20–100 ℃), exhibiting a good thermal stability. Also, the GAF can be used as a strain sensor directly without any flexible substrates, which greatly simplifies the fabrication process in comparison with most reported strain sensors. Additionally, the GAF used as a pressure sensor with only ~4.7 μW power is investigated. This work provides a new direction for the preparation of advanced sensors with ultra-low power consumption, and the development of flexible and energy-saving electronic devices. © 2020 Science China Press Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170083
Appears in Collections: 气候变化与战略
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作者单位: Hubei Engineering Research Center of RF-Microwave Technology and Application, School of Science, Wuhan University of Technology, Wuhan, 430070, China; Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics, School of Science, Wuhan University of Technology, Wuhan, 430070, China; State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
Recommended Citation:
Wang Z.,Li P.,Song R.,et al. High conductive graphene assembled films with porous micro-structure for freestanding and ultra-low power strain sensors[J]. Science Bulletin,2020-01-01,65(16)