@article{6aae7af7d51f4bd3b32b40c41d8de88c,
title = "Kirigami-inspired strain-insensitive sensors based on atomically-thin materials",
abstract = "This work reports kirigami-inspired architectures of graphene for strain-insensitive, surface-conformal stretchable multifunctional electrodes and sensors. The kirigami-inspired graphene electrode exhibits strain-insensitive electrical properties up to 240% applied tensile strain and mixed strain states, including a combination of stretching, twisting, and/or shearing. Moreover, a multitude of kirigami designs of graphene are explored computationally to predict deformation morphologies under different strain conditions and to achieve controllable stretchability. Notably, strain-insensitive graphene field-effect transistor and photodetection under 130% stretching and 360° torsion are achieved by strategically redistributing stress concentrations away from the active sensing elements via strain-responsive out-of-plane buckling at the vicinity of the kirigami notches. The combination of ultra-thin form factor, conformity on skin, and breathable notches suggests the applicability of kirigami-inspired platform based on atomically-thin materials in a broader set of wearable technology.",
author = "Keong Yong and Subhadeep De and Hsieh, {Ezekiel Y.} and Juyoung Leem and Aluru, {Narayana R.} and Nam, {Sung Woo}",
note = "Funding Information: S.N. gratefully acknowledges support from the NSF (EEC-1720701, CMMI-1554019 and MRSEC DMR-1720633), AFOSR/AOARD (FA2386-17-1-4071 and FA9550-16-1-0251), ARL (W911NF-16-2-0220), NASA ECF (NNX16AR56G), ONR YIP (N00014-17-1-2830) and JITRI. Experiments are carried out in part in the Materials Research Laboratory Central Research Facilities, Holonyak Micro & Nanotechnology Laboratory, and the Beckman Institute Imaging Technology Group at the University of Illinois at Urbana-Champaign. This research was partially supported by the NSF through the University of Illinois at Urbana-Champaign Materials Research Science and Engineering Center DMR-1720633. The raw/processed data required to reproduce these findings cannot be shared at this time as the data also forms part of an ongoing study. Funding Information: S.N. gratefully acknowledges support from the NSF ( EEC-1720701 , CMMI-1554019 and MRSEC DMR-1720633 ), AFOSR / AOARD ( FA2386-17-1-4071 and FA9550-16-1-0251 ), ARL ( W911NF-16-2-0220 ), NASA ECF ( NNX16AR56G ), ONR YIP ( N00014-17-1-2830 ) and JITRI . Experiments are carried out in part in the Materials Research Laboratory Central Research Facilities, Holonyak Micro & Nanotechnology Laboratory, and the Beckman Institute Imaging Technology Group at the University of Illinois at Urbana-Champaign. This research was partially supported by the NSF through the University of Illinois at Urbana-Champaign Materials Research Science and Engineering Center DMR-1720633 . Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",
year = "2020",
month = apr,
doi = "10.1016/j.mattod.2019.08.013",
language = "English (US)",
volume = "34",
pages = "58--65",
journal = "Materials Today",
issn = "1369-7021",
publisher = "Elsevier",
}