title: Simple method for high-performance stretchable composite conductors with entrapped air bubbles.
abstract: We integrate air bubbles into conductive elastic composite-based stretchable conductors to make them mechanically less stiff and electrically more robust against physical deformations. A surfactant facilitates both the formation and maintenance of air bubbles inside the elastic composites, leading to a simple fabrication of bubble-entrapped stretchable conductors. Based on the unique bubble-entrapped architecture, the elastic properties are greatly enhanced and the resistance change in response to tensile strains can clearly be controlled. The bubble-entrapped conductor achieves ~80 % elongation at ~3.4 times lower stress and ~44.8 % smaller change in the electrical resistance at 80 % tensile strain, compared to bare conductor without air bubbles.
authors.affiliation: Department of Nanomechatronics Engineering, Pusan National University, Busan, 609-735, Republic of Korea. hhj5443@gmail.com.|Present address: Department of Nanoscience and Technology, Seoul National University, Seoul, 151-742, Republic of Korea. hhj5443@gmail.com.
authors.forename: Hyejin
authors.initials: H
authors.lastname: Hwang
authors.affiliation: Department of Nanomechatronics Engineering, Pusan National University, Busan, 609-735, Republic of Korea. daegonkim7@gmail.com.|Present address: School of Electrical and Computer Engineering, Seoul National University, Seoul, 151-742, Republic of Korea. daegonkim7@gmail.com.
authors.forename: Dae-Gon
authors.initials: DG
authors.lastname: Kim
authors.affiliation: Department of Nano Fusion Technology and BK21 Plus Nano Convergence Technology Division, Pusan National University, Busan, 609-735, Republic of Korea. jns1016@naver.com.
authors.forename: Nam-Su
authors.initials: NS
authors.lastname: Jang
authors.affiliation: Department of Nano Fusion Technology and BK21 Plus Nano Convergence Technology Division, Pusan National University, Busan, 609-735, Republic of Korea. whilewhale@gmail.com.
authors.forename: Jeong-Ho
authors.initials: JH
authors.lastname: Kong
authors.affiliation: Department of Nano Fusion Technology and BK21 Plus Nano Convergence Technology Division, Pusan National University, Busan, 609-735, Republic of Korea. jongkim@pusan.ac.kr.|Department of Nanoenergy Engineering, Pusan National University, Busan, 609-735, Republic of Korea. jongkim@pusan.ac.kr.
authors.forename: Jong-Man
authors.initials: JM
authors.lastname: Kim
keywords: CNT networks; Conductive elastic composites; Entrapped air bubbles; Stretchable conductor; Surfactant