title: Highly Sensitive and Stretchable Multidimensional Strain Sensor with Prestrained Anisotropic Metal Nanowire Percolation Networks.
abstract: To overcome the limitation of the conventional single axis-strain sensor, we demonstrate a multidimensional strain sensor composed of two layers of prestrained silver nanowire percolation network with decoupled and polarized electrical response in principal and perpendicular directional strain. The information on strain vector is successfully measured up to 35% maximum strain with large gauge factor (>20). The potential of the proposed sensor as a versatile wearable device has been further confirmed.
authors.affiliation: †Applied Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea.
authors.forename: Kyun Kyu
authors.initials: KK
authors.lastname: Kim
authors.affiliation: †Applied Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea.
authors.forename: Sukjoon
authors.initials: S
authors.lastname: Hong
authors.affiliation: †Applied Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea.
authors.forename: Hyun Min
authors.initials: HM
authors.lastname: Cho
authors.affiliation: †Applied Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea.
authors.forename: Jinhwan
authors.initials: J
authors.lastname: Lee
authors.affiliation: †Applied Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea.
authors.forename: Young Duk
authors.initials: YD
authors.lastname: Suh
authors.affiliation: ‡Department of Chemical Engineering Stanford University, 443 Via Ortega, Stanford, California 94305-4125, United States.
authors.forename: Jooyeun
authors.initials: J
authors.lastname: Ham
authors.affiliation: †Applied Nano and Thermal Science Lab, Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Korea.
authors.forename: Seung Hwan
authors.initials: SH
authors.lastname: Ko
keywords: anisotropic resistance change; multiaxis strain sensor; nanowire percolation network; stretchable electronics