title: 3D-stacked carbon composites employing networked electrical intra-pathways for direct-printable, extremely stretchable conductors.
abstract: The newly designed materials for stretchable conductors meeting the demands for both electrical and mechanical stability upon morphological elongation have recently been of paramount interest in the applications of stretchable, wearable electronics. To date, carbon nanotube-elastomeric polymer mixtures have been mainly developed; however, the method of preparing such CNT-polymer mixtures as stretchable conductors has been limited to an ionic liquid-mediated approach. In this study, we suggest a simple wet-chemical method for producing newly designed, three-dimensionally stacked carbon composite materials that facilitate the stable morphological elongation up to a strain of 300% with normalized conductivity variation of only 0.34 under a strain of 300%. Through a comparative study with other control samples, it is demonstrated that the intraconnected electrical pathways in hierarchically structured composite materials enable the generation of highly stretchable conductors. Their direct patternability is also evaluated by printing on demand using a programmable disperser without the use of prepatterned masks.
authors: Division of Advanced Materials, Korea Research Institute of Chemical Technology (KRICT) , Daejeon 305-600, Republic of Korea.
authors: Changju
authors: C
authors: Chae
authors: Yeong-Hui
authors: YH
authors: Seo
authors: Yejin
authors: Y
authors: Jo
authors: Ki Woong
authors: KW
authors: Kim
authors: Wooseok
authors: W
authors: Song
authors: Ki-Seok
authors: KS
authors: An
authors: Sungho
authors: S
authors: Choi
authors: Youngmin
authors: Y
authors: Choi
authors: Sun Sook
authors: SS
authors: Lee
authors: Sunho
authors: S
authors: Jeong
keywords: 3D; composite; conductor; printable; stretchable