한빛사논문
- 조회786
Dongjun Jung, Chaehong Lim, Chansul Park, Yeongjun Kim, Minseong Kim, Seunghwan Lee, Hyunjin Lee, Jeong Hyun Kim, Taeghwan Hyeon,* and Dae-Hyeong Kim*
D. Jung, C. Lim, C. Park, Y. Kim, M. Kim, S. Lee, H. Lee, J. H. Kim, T. Hyeon, D.-H. Kim
Center for Nanoparticle Research Institute for Basic Science (IBS) Seoul 08826, Republic of Korea
D. Jung, C. Lim, C. Park, Y. Kim, M. Kim, S. Lee, H. Lee, T. Hyeon, D.-H. Kim
School of Chemical and Biological Engineering and Institute of Chemical Processes Seoul National University Seoul 08826, Republic of Korea
D.J., C.L., and C.P. contributed equally to this work.
*Corresponding author.
Abstract
Highly conductive and stretchable nanocomposites are promising material candidates for skin electronics. However, the resistance of stretchable metallic nanocomposites highly depends on external strains, often deteriorating the performance of fabricated electronic devices. Here, a material strategy for the highly conductive and stretchable nanocomposites comprising metal nanomaterials of various dimensions and a viscoelastic block-copolymer matrix is presented. The resistance of the nanocomposites can be well retained under skin deformations (<50% strain). It is demonstrated that silver nanomaterials can self-organize inside the viscoelastic media in response to external strain when their surface is conjugated with 1-decanethiol. Distinct self-organization behaviors associated with nanomaterial dimensions and strain conditions are found. Adopting the optimum composition of 0D/1D/2D silver nanomaterials can render the resistance of the nanocomposites insensitive to uniaxial or biaxial strains. As a result, the resistance can be maintained with a variance of < 1% during 1000 stretching cycles under uniaxial and biaxial strains of <50% while a high conductivity of ≈31 000 S cm−1 is achieved.
논문정보
- Research article
- 2022년 06월 (BRIC 등록일 2022-06-27)
- 국내 연구진
- 바이오·의료융합 > 바이오센싱 및 나노바이오물질
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