Highly Stretchable Hybrid Nanomembrane Supercapacitors

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dc.contributor.ISNI0000 0003 5232 4253 (Baughman, RH)en_US
dc.contributor.authorKim, Keon Jungen_US
dc.contributor.authorLee, Jae Ah (UT Dallas)en_US
dc.contributor.authorLima, Márcio D. (UT Dallas)en_US
dc.contributor.authorBaughman, Ray H.en_US
dc.contributor.authorKim, Seon Jeongen_US
dc.contributor.utdAuthorBaughman, Ray H.
dc.date.accessioned2018-06-01T16:16:51Z
dc.date.available2018-06-01T16:16:51Z
dc.date.issued2016-03-04en_US
dc.descriptionIncludes supplementary materialen_US
dc.description.abstractSupercapacitors that are lightweight, mechanically deformable (stretchable, flexible) and electrochemically stable have potential for various applications like portable, wearable, and implantable electronics. Here we demonstrate a stretchable and high-performing hybrid nanomembrane supercapacitor. The hybrid nanomembrane is prepared by vapour phase polymerization (VPP) based nanoscopic PEDOT coating on carbon nanotube sheets (CNS) transferred onto an elastomeric substrate to form a wavy structure. The resulting wavy structured hybrid nanomembrane based supercapacitor exhibits high electrochemical performance and mechanical stretchability, simultaneously. The high specific capacitances and energy density (82 F g⁻¹, 11 mF cm⁻², and 7.28 W h kg⁻¹ at 0% strain) are retained under large mechanical deformation (77 F g⁻¹ and 6.87 W h kg⁻¹ at a biaxial strain of 600%). Moreover, there is only <1% degradation of capacitance ratio after 1000 cycles stretching/releasing and bending/unbending. This high mechanical cyclic stability is shown even during stretching/releasing and bending/unbending measured by dynamic cyclic voltammetry (CV). These results suggest that our supercapacitor is valuable in a wide range of applications that require it to be electrochemically stable under large mechanical deformation, such as strain sensors, wearable electronics and biomedical devices.en_US
dc.description.sponsorshipThis work was supported by the Creative Research Initiative Center for Self-powered Actuation and the Korea-US Air Force Cooperation Program Grant No. 2013K1A3A1A32035592 in Korea. In the USA, Air Force Office of Scientific Research grants FA9550-15-1- 0089 and AOARD-FA2386-13-4119, NASA grants NNX14CS09P and NNX15CS05C, and the Robert A. Welch Foundation grant AT-0029.en_US
dc.identifier.bibliographicCitationKim, Keon Jung, Jae Ah Lee, Márcio D. Lima, Ray H. Baughman, et al. 2016. "Highly stretchable hybrid nanomembrane supercapacitors." RSC Advances 6(29), doi: 10.1039/C6RA02757Aen_US
dc.identifier.issn2046-2069en_US
dc.identifier.issue29en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/5816
dc.identifier.volume6en_US
dc.relation.urihttp://dx.doi.org/10.1039/c6ra02757a
dc.rights©2016 The Royal Society of Chemistry. This article may not be further made available or distributed.en_US
dc.source.journalRSC Advancesen_US
dc.subjectCarbon nanotubesen_US
dc.subjectSupercapacitorsen_US
dc.subjectPoly 3,4-ethylenedioxythiophene (PEDOT)en_US
dc.subjectMembrane filtersen_US
dc.titleHighly Stretchable Hybrid Nanomembrane Supercapacitorsen_US
dc.type.genrearticleen_US

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