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Recent Progress in Flexible Tactile Sensors for Human-Interactive Systems: From Sensors to Advanced Applications

Authors
Soonjae PyoJaeyong LeeKYUBIN BAESANGJUN SIMJongbaeg Kim
Issue Date
Nov-2021
Publisher
WILEY-V C H VERLAG GMBH
Keywords
electronic skin; human-machine interfaces; robotics; tactile sensors; wearable electronics
Citation
ADVANCED MATERIALS, v.33, no.47, pp.2005902-1 - 2005902-
Journal Title
ADVANCED MATERIALS
Volume
33
Number
47
Start Page
2005902-1
End Page
2005902-
URI
https://yscholarhub.yonsei.ac.kr/handle/2021.sw.yonsei/5250
DOI
10.1002/adma.202005902
ISSN
0935-9648
Abstract
Flexible tactile sensors capable of measuring mechanical stimuli via physical contact have attracted significant attention in the field of human-interactive systems. The utilization of tactile information can complement vision and/ or sound interaction and provide new functionalities. Recent advancements in micro/nanotechnology, material science, and information technology have resulted in the development of high-performance tactile sensors that reach and even surpass the tactile sensing ability of human skin. Here, important advances in flexible tactile sensors over recent years are summarized, from sensor designs to system-level applications. This review focuses on the representative strategies based on design and material configurations for improving key performance parameters including sensitivity, detection range/linearity, response time/hysteresis, spatial resolution/crosstalk, multidirectional force detection, and insensitivity to other stimuli. System-level integration for practical applications beyond conceptual prototypes and promising applications, such as artificial electronic skin for robotics and prosthetics, wearable controllers for electronics, and bidirectional communication tools, are also discussed. Finally, perspectives on issues regarding further advances are provided.
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