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Flexible sensors on polymide fabricated by femtosecond laser for integration in fiber reinforced polymers

Estevam Alves, Regina and Qian, Chen and Behr, Christian and Hecht, Lars and Dietzel, Andreas and Sinapius, Michael (2018) Flexible sensors on polymide fabricated by femtosecond laser for integration in fiber reinforced polymers. IOP Conference Series : Materials Science and Engineering, 3 (2). Institute of Physics (IOP) Publishing. doi: 10.1088/2058-8585/aabe45. ISSN 1757-8981.

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Official URL: http://iopscience.iop.org/article/10.1088/2058-8585/aabe45/meta


Polyimides have been known as a super-engineering plastic for more than 40 years due to their excellent thermal stability and mechanical properties. In recent years they have been recognized as key components for the fabrication of flexible sensing devices such as microsensors, microactuators, batteries and other micro-electro-mechanical systems. In this work, femtosecond laser micromachining of a polyimide (PI) film coated with Au/Cr films has been studied to understand the selective patterning mechanism of Au/Cr and ablation characteristics of the PI film. Once the proper process conditions for cutting of the PI film and removing of the Au/Cr coating without damaging the polymer substrate have been established, we were able to use the found process window to fabricate a very thin sensor on flexible polymer substrate that shows significant potential in using PI-based functional devices suitable for embedding in fiber reinforced polymer materials with minimal impairment of the load transmission path.

Item URL in elib:https://elib.dlr.de/124313/
Document Type:Article
Title:Flexible sensors on polymide fabricated by femtosecond laser for integration in fiber reinforced polymers
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Estevam Alves, ReginaRegina.EstevamAlves (at) dlr.deUNSPECIFIED
Behr, Christianc.behr (at) dlr.deUNSPECIFIED
Dietzel, Andreasa.dietzel (at) tu-braunschweig.deUNSPECIFIED
Sinapius, MichaelMichael.Sinapius (at) dlr.deUNSPECIFIED
Journal or Publication Title:IOP Conference Series : Materials Science and Engineering
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:No
DOI :10.1088/2058-8585/aabe45
Publisher:Institute of Physics (IOP) Publishing
Series Name:Flexible and Printed Electronics
Keywords:flexible sensor, polymide, femtosecond laser
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures and Materials (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems
Deposited By: Behr, Christian
Deposited On:10 Dec 2018 08:43
Last Modified:10 Dec 2018 08:43

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