Responsive, 3d Electronics Enabled by Liquid Crystal Elastomer Substrates

dc.contributor.ORCID0000-0001-7996-7393 (Ware, TH)
dc.contributor.authorKim, Hyun
dc.contributor.authorGibson, J.
dc.contributor.authorMaeng, Jimin
dc.contributor.authorSaed, Mohand O.
dc.contributor.authorPimentel, K.
dc.contributor.authorRihani, Rashed T.
dc.contributor.authorPancrazio, Joseph J.
dc.contributor.authorGeorgakopoulos, S. V.
dc.contributor.authorWare, Taylor H.
dc.contributor.utdAuthorKim, Hyun
dc.contributor.utdAuthorMaeng, Jimin
dc.contributor.utdAuthorSaed, Mohand O.
dc.contributor.utdAuthorRihani, Rashed T.
dc.contributor.utdAuthorPancrazio, Joseph J.
dc.contributor.utdAuthorWare, Taylor H.
dc.descriptionDue to copyright restrictions and/or publisher's policy full text access from Treasures at UT Dallas is limited to current UTD affiliates (use the provided Link to Article).
dc.descriptionSupplementary material is available on publisher's website. Use the DOI link below.
dc.description.abstractTraditional electronic devices are rigid, planar, and mechanically static. The combination of traditional electronic materials and responsive polymer substrates is of significant interest to provide opportunities to replace conventional electronic devices with stretchable, 3D, and responsive electronics. Liquid crystal elastomers (LCEs) are well suited to function as such dynamic substrates because of their large strain, reversible stimulus response that can be controlled through directed self-assembly of molecular order. Here, we discuss using LCEs as substrates for electronic devices that are flat during processing but then morph into controlled 3D structures. We design and demonstrate processes for a variety of electronic devices on LCEs including deformation-tolerant conducting traces and capacitors and cold temperature-responsive antennas. For example, patterning twisted nematic orientation within the substrate can be used to create helical electronic devices that stretch up to 100% with less than 2% change in resistance or capacitance. Moreover, we discuss self-morphing LCE antennas which can dynamically change the operating frequency from 2.7 GHz (room temperature) to 3.3 GHz (-65 °C). We envision applications for these 3D, responsive devices in wearable or implantable electronics and in cold-chain monitoring radio frequency identification sensors. ©2019 American Chemical Society.
dc.description.departmentErik Jonsson School of Engineering and Computer Science
dc.description.sponsorshipNational Science Foundation under grant nos. 1711383, NSF ECCS 1711467 and NSF EFRI 1332348; Defense Advanced Research Projects Agency (DARPA) under contract no. 140D6318C0097.
dc.identifier.bibliographicCitationKim, H., J. Gibson, J. Maeng, M. O. Saed, et al. 2019. "Responsive, 3D Electronics Enabled by Liquid Crystal Elastomer Substrates." ACS Applied Materials and Interfaces 11(21): 19506-19513, doi: 10.1021/acsami.9b04189
dc.publisherAmerican Chemical Society
dc.rights©2019 American Chemical Society
dc.source.journalACS Applied Materials and Interfaces
dc.subjectAntennas (Electronics)
dc.subjectFlexible electronics
dc.subjectLiquid crystal elastomers
dc.subjectMicrowave antennas
dc.subjectNematic liquid crystals
dc.subjectRadio frequency identification systems
dc.titleResponsive, 3d Electronics Enabled by Liquid Crystal Elastomer Substrates


Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
166.24 KB
Adobe Portable Document Format
Link to Article