A Sandwiched/Cracked Flexible Film for Multithermal Monitoring and Switching Devices

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2017专题

	A Sandwiched/Cracked Flexible Film for Multithermal Monitoring and Switching Devices
	Tai, Yanlong; Chen, Tao; Lubineau, Gilles
刊名	ACS APPLIED MATERIALS & INTERFACES
	2017
卷号	9 期号:37 页码:32184-32191
ISSN号	1944-8244
英文摘要	Polydirnethylsiloxane (PDMS)-based flexible films have substantiated advantages in various sensing applications. Here, we demonstrate the highly sensitive and programmable thermal-sensing capability (thermal index, B, up to 126 x 10(3) K) of flexible films with tunable sandwiched microstructures (PDMS/cracked single-walled carbon nanotube (SWCNT) film/PDMS) when a thermal stimulus is applied. We found that this excellent performance results from the following features of the film's structural and material design: (1) the sandwiched structure allows the film to switch from a three-dimensional to a two-dimensional in-plane deformation and (2) the stiffness of the SWCNT film is decreased by introducing microcracks that make deformation easy and that promote the macroscopic piezoresistive behavior of SWCNT crack islands and the microscopic piezoresistive behavior of SWCNT bundles. The PDMS layer is characterized by a high coefficient of thermal expansion (alpha = 310 x 10(-6) K-1) and low stiffness (similar to 2 MPa) that allow for greater flexibility and higher temperature sensitivity. We determined the efficacy of our sandwiched, cracked, flexible films in monitoring and switching flexible devices when subjected to various stimuli, including thermal conduction, thermal radiation, and light radiation.
公开日期	2017-12-25
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/13617]
专题	2017专题
推荐引用方式 GB/T 7714	Tai, Yanlong,Chen, Tao,Lubineau, Gilles. A Sandwiched/Cracked Flexible Film for Multithermal Monitoring and Switching Devices[J]. ACS APPLIED MATERIALS & INTERFACES,2017,9(37):32184-32191.
APA	Tai, Yanlong,Chen, Tao,&Lubineau, Gilles.(2017).A Sandwiched/Cracked Flexible Film for Multithermal Monitoring and Switching Devices.ACS APPLIED MATERIALS & INTERFACES,9(37),32184-32191.
MLA	Tai, Yanlong,et al."A Sandwiched/Cracked Flexible Film for Multithermal Monitoring and Switching Devices".ACS APPLIED MATERIALS & INTERFACES 9.37(2017):32184-32191.