한빛사 논문
Jiuk Jang,†,‡,⊥,¶ Hyobeom Kim,†,‡,⊥,¶ Sangyoon Ji,†,‡,⊥ Ha Jun Kim,§ Min Soo Kang,∥ Tae Soo Kim,∥ Jong-eun Won,‡,⊥ Jae-Hyun Lee,‡,⊥ Jinwoo Cheon,*,‡,⊥,# Kibum Kang,*,∥ Won Bin Im,*,§ and Jang-Ung Park*,†,‡,⊥
† Nano Science Technology Institute, Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
‡ Center for Nanomedicine, Institute for Basic Science (IBS), Seoul 03722, Republic of Korea
§ Division of Materials of Science and Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
∥ Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
⊥ Yonsei IBS Institute, Yonsei University, Seoul 03722 Republic of Korea
# Department of Chemistry, Yonsei University, Seoul 03722 Republic of Korea
*Corresponding Authors : Jinwoo Cheon, Kibum Kang, Won Bin Im, and Jang-Ung Park
Author Contributions
¶(J.J., H.K.) These authors contributed equally to this work.
Abstract
Tactile pressure sensors as flexible bioelectronic devices have been regarded as the key component for recently emerging applications in electronic skins, health-monitoring devices, or human–machine interfaces. However, their narrow range of sensible pressure and their difficulty in forming high integrations represent major limitations for various potential applications. Herein, we report fully integrated, active-matrix arrays of pressure-sensitive MoS2 transistors with mechanoluminescent layers and air dielectrics for wide detectable range from footsteps to cellular motions. The inclusion of mechanoluminescent materials as well as air spaces can increase the sensitivity significantly over entire pressure regimes. In addition, the high integration capability of these active-matrix sensory circuitries can enhance their spatial resolution to the level sufficient to analyze the pressure distribution in a single cardiomyocyte. We envision that these wide-range pressure sensors will provide a new strategy toward next-generation electronics at biomachine interfaces to monitor various mechanical and biological phenomena at single-cell resolution.
KEYWORDS : MoS2 transistor, pressure sensor, mechanoluminescence, flexible electronics, bioelectronics
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