A Sandwiched/Cracked Flexible Film for Multi-Thermal Monitoring and Switching Devices

Handle URI:
http://hdl.handle.net/10754/625749
Title:
A Sandwiched/Cracked Flexible Film for Multi-Thermal Monitoring and Switching Devices
Authors:
Tai, Yanlong ( 0000-0002-9657-6842 ) ; Chen, Tao; Lubineau, Gilles ( 0000-0002-7370-6093 )
Abstract:
Polydimethylsiloxane (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 × 103 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 (α = 310 × 10-6 K-1) and low stiffness (∼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.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Tai Y, Chen T, Lubineau G (2017) A Sandwiched/Cracked Flexible Film for Multithermal Monitoring and Switching Devices. ACS Applied Materials & Interfaces 9: 32184–32191. Available: http://dx.doi.org/10.1021/acsami.7b05467.
Publisher:
American Chemical Society (ACS)
Journal:
ACS Applied Materials & Interfaces
Issue Date:
30-Aug-2017
DOI:
10.1021/acsami.7b05467
Type:
Article
ISSN:
1944-8244; 1944-8252
Sponsors:
We express gratitude to the King Abdullah University of Science and Technology (KAUST) for baseline research funding, the Natural Science Foundation of China (51573203, 21404111, and 51503216), the Key Research Program of Frontier Sciences, the Chinese Academy of Sciences (QYZDB-SSW-SLH036), the Ningbo Science and Technology Bureau (2013B10040 and 2014B82010), and the National Basic Research Program of China (2011CB605602) for financial support.
Additional Links:
http://pubs.acs.org/doi/abs/10.1021/acsami.7b05467; http://pubs.acs.org/doi/abs/10.1021/acsami.7b05467
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorTai, Yanlongen
dc.contributor.authorChen, Taoen
dc.contributor.authorLubineau, Gillesen
dc.date.accessioned2017-10-03T12:49:37Z-
dc.date.available2017-10-03T12:49:37Z-
dc.date.issued2017-08-30en
dc.identifier.citationTai Y, Chen T, Lubineau G (2017) A Sandwiched/Cracked Flexible Film for Multithermal Monitoring and Switching Devices. ACS Applied Materials & Interfaces 9: 32184–32191. Available: http://dx.doi.org/10.1021/acsami.7b05467.en
dc.identifier.issn1944-8244en
dc.identifier.issn1944-8252en
dc.identifier.doi10.1021/acsami.7b05467en
dc.identifier.urihttp://hdl.handle.net/10754/625749-
dc.description.abstractPolydimethylsiloxane (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 × 103 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 (α = 310 × 10-6 K-1) and low stiffness (∼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.en
dc.description.sponsorshipWe express gratitude to the King Abdullah University of Science and Technology (KAUST) for baseline research funding, the Natural Science Foundation of China (51573203, 21404111, and 51503216), the Key Research Program of Frontier Sciences, the Chinese Academy of Sciences (QYZDB-SSW-SLH036), the Ningbo Science and Technology Bureau (2013B10040 and 2014B82010), and the National Basic Research Program of China (2011CB605602) for financial support.en
dc.publisherAmerican Chemical Society (ACS)en
dc.relation.urlhttp://pubs.acs.org/doi/abs/10.1021/acsami.7b05467en
dc.relation.urlhttp://pubs.acs.org/doi/abs/10.1021/acsami.7b05467en
dc.subjectTemperature Sensingen
dc.subjectElectronic Skinen
dc.subjectTunable Cracked Microstructuresen
dc.subjectFlexible Monitoring Or Switching Devicesen
dc.subjectPiezoresistive Behavioren
dc.subjectThermal Switchesen
dc.titleA Sandwiched/Cracked Flexible Film for Multi-Thermal Monitoring and Switching Devicesen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalACS Applied Materials & Interfacesen
dc.contributor.institutionInstitute of Materials Technology and Engineering, Chinese Academy of Sciences , 1219 Zhongguan West Road, Ningbo 315201, China.en
kaust.authorTai, Yanlongen
kaust.authorLubineau, Gillesen
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