Strain-driven and Ultra-sensitive Resistive Sensor/Switch Basedon Conductive Alginate/Nitrogen-doped Carbon-Nanotube-Supported Ag Hybrid Aerogels with Pyramid Design

	Strain-driven and Ultra-sensitive Resistive Sensor/Switch Basedon Conductive Alginate/Nitrogen-doped Carbon-Nanotube-Supported Ag Hybrid Aerogels with Pyramid Design
	Zhao, Songfang; Zhang, Guoping; Gao, Yongju; Deng, Libo; Li, Jinhui; Sun, Rong; Wong, Ching-Ping
刊名	ACS APPLIED MATERIALS & INTERFACES
	2014
英文摘要	Flexible strain-driven sensor is an essential component in the flexible electronics. Especially, high durability and sensitivity to strain are required. Here, we present an efficient and low-cost fabrication strategy to construct a highly sensitive and flexible pressure sensor based on a conductive, elastic aerogel with pyramid design. When pressure is loaded, the contact area between the interfaces of the conductive aerogel and the copper electrode as well as among the building blocks of the nitrogen-doped carbon-nanotube-supported Ag (N-CNTs/Ag) aerogel monoliths, changes in reversible and directional manners. This contact resistance mechanism enables the hybrid aerogels to act as strain-driven sensors with high sensitivity and excellent on/off swithching behavior, and the gauge factor (GF) is ∼15 under strain of 3%, which is superior to those reported for other aerogels. In addition, robust, elastomeric and conductive nanocomposites can be fabricated by injecting polydimethylsiloxane (PDMS) into alginate/N-CNTs/Ag aerogels. Importantly, the building blocks forming the aerogels retain their initial contact and percolation after undergoing large-strain deformation, PDMS infiltration, and cross-linking of PDMS, suggesting their potential applications as strain sensors.
收录类别	SCI
原文出处	http://pubs.acs.org/doi/pdf/10.1021/am5069936
语种	英语
内容类型	期刊论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/5488]
专题	深圳先进技术研究院_集成所
作者单位	ACS APPLIED MATERIALS & INTERFACES
推荐引用方式 GB/T 7714	Zhao, Songfang,Zhang, Guoping,Gao, Yongju,et al. Strain-driven and Ultra-sensitive Resistive Sensor/Switch Basedon Conductive Alginate/Nitrogen-doped Carbon-Nanotube-Supported Ag Hybrid Aerogels with Pyramid Design[J]. ACS APPLIED MATERIALS & INTERFACES,2014.
APA	Zhao, Songfang.,Zhang, Guoping.,Gao, Yongju.,Deng, Libo.,Li, Jinhui.,...&Wong, Ching-Ping.(2014).Strain-driven and Ultra-sensitive Resistive Sensor/Switch Basedon Conductive Alginate/Nitrogen-doped Carbon-Nanotube-Supported Ag Hybrid Aerogels with Pyramid Design.ACS APPLIED MATERIALS & INTERFACES.
MLA	Zhao, Songfang,et al."Strain-driven and Ultra-sensitive Resistive Sensor/Switch Basedon Conductive Alginate/Nitrogen-doped Carbon-Nanotube-Supported Ag Hybrid Aerogels with Pyramid Design".ACS APPLIED MATERIALS & INTERFACES (2014).