한빛사논문
- 조회392
고려대학교
Junsung Bang1, Junhyuk Ahn1, Jinyuan Zhang2, Tae Hee Ko3,4, Byeonghak Park5, Yong Min Lee6, Byung Ku Jung1, Sang Yeop Lee1, Jehyung Ok5, Bong Hoon Kim7, Tae-il Kim5,8, JongIl Choi3,4*, Chi Hwan Lee2,9,10,11*, and Soong Ju Oh1*
1Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
2Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA
3Division of Cardiology, Department of Internal Medicine, Korea University College of Medicine and Korea University Medical Center, Seoul 02841, Republic of Korea
4Ion Channel Research Unit, Cardiovascular Research Institute, Korea University, Seoul 02841, Republic of Korea
5School of Chemical Engineering, Sungkyunkwan university (SKKU), Suwon 16419, Republic of Korea
6Department of Semiconductor Systems Engineering, Korea University, Seoul 02841, Republic of Korea
7Department of Robotics and Mechatronics Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
8Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
9School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USA
10School of Materials Engineering, Purdue University, West Lafayette, IN 47907, USA
11Brick Nanotechnology Center, Purdue University, West Lafayette, IN 47907, USA.
*Corresponding author.
Abstract
Stretchable electrodes are widely used in next-generation wearable electronics. Recent studies incorporated designs that help rigid electrodes attain stretchability. However, these structures exhibited unsatisfactory charge/signal extraction efficiency because of their low areal fill factor. Additionally, they cannot be photolithographically patterned on polymer substrates because of their low adhesion, requiring additional complicated fabrication steps. We developed photolithographically patternable stretchable electrodes with complete coverage and enhanced charge-extraction efficiency. The electrodes, comprising double layers, included a chemically treated Ag nanowire mesh and Au thin film. The interfacial linker role of polyvinylpyrrolidone chemically strengthened the interfacial bonds, and the reinforced concrete structure of nanowire-embedded metal thin films enhanced the mechanical properties. Therefore, the electrodes provided superior efficiency and stability in capturing physical, electromagnetic, and electrophysiological signals while exceeding the existing stretchable electrode limits. A broad range of applications are foreseen, such as electrocardiogram sensing electrodes, strain sensors, temperature sensors, and antennas.
논문정보
- Research article
- 2022년 08월 (BRIC 등록일 2022-11-03)
- 국내(교신)+국외 연구진
- 바이오·의료융합 > 바이오센싱 및 나노바이오물질
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