TY - JOUR
T1 - High-Throughput Manufacturing of Multimodal Epidermal Mechanosensors with Superior Detectability Enabled by a Continuous Microcracking Strategy
AU - An, Jianing
AU - Tran, Van Thai
AU - Xu, Hai
AU - Ma, Wenshuai
AU - Chen, Xingkuan
AU - Le, Truong Son Dinh
AU - Du, Hejun
AU - Sun, Gengzhi
AU - Kim, Young Jin
N1 - Publisher Copyright:
© 2023 The Authors. Advanced Science published by Wiley-VCH GmbH.
PY - 2024/1/26
Y1 - 2024/1/26
N2 - Non-invasive human-machine interactions (HMIs) are expected to be promoted by epidermal tactile receptive devices that can accurately perceive human activities. In reality, however, the HMI efficiency is limited by the unsatisfactory perception capability of mechanosensors and the complicated techniques for device fabrication and integration. Herein, a paradigm is presented for high-throughput fabrication of multimodal epidermal mechanosensors based on a sequential “femtosecond laser patterning-elastomer infiltration-physical transfer” process. The resilient mechanosensor features a unique hybrid sensing layer of rigid cellular graphitic flakes (CGF)-soft elastomer. The continuous microcracking of CGF under strain enables a sharp reduction in conductive pathways, while the soft elastomer within the framework sustains mechanical robustness of the structure. As a result, the mechanosensor achieves an ultrahigh sensitivity in a broad strain range (GF of 371.4 in the first linear range of 0–50%, and maximum GF of 8922.6 in the range of 61–70%), a low detection limit (0.01%), and a fast response/recovery behavior (2.6/2.1 ms). The device also exhibits excellent sensing performances to multimodal mechanical stimuli, enabling high-fidelity monitoring of full-range human motions. As proof-of-concept demonstrations, multi-pixel mechanosensor arrays are constructed and implemented in a robot hand controlling system and a security system, providing a platform toward efficient HMIs.
AB - Non-invasive human-machine interactions (HMIs) are expected to be promoted by epidermal tactile receptive devices that can accurately perceive human activities. In reality, however, the HMI efficiency is limited by the unsatisfactory perception capability of mechanosensors and the complicated techniques for device fabrication and integration. Herein, a paradigm is presented for high-throughput fabrication of multimodal epidermal mechanosensors based on a sequential “femtosecond laser patterning-elastomer infiltration-physical transfer” process. The resilient mechanosensor features a unique hybrid sensing layer of rigid cellular graphitic flakes (CGF)-soft elastomer. The continuous microcracking of CGF under strain enables a sharp reduction in conductive pathways, while the soft elastomer within the framework sustains mechanical robustness of the structure. As a result, the mechanosensor achieves an ultrahigh sensitivity in a broad strain range (GF of 371.4 in the first linear range of 0–50%, and maximum GF of 8922.6 in the range of 61–70%), a low detection limit (0.01%), and a fast response/recovery behavior (2.6/2.1 ms). The device also exhibits excellent sensing performances to multimodal mechanical stimuli, enabling high-fidelity monitoring of full-range human motions. As proof-of-concept demonstrations, multi-pixel mechanosensor arrays are constructed and implemented in a robot hand controlling system and a security system, providing a platform toward efficient HMIs.
KW - continuous microcracking
KW - high-throughput laser manufacturing
KW - multimodal epidermal mechanosensors
KW - rigid-soft hybrid sensing layer
KW - superior detectability
UR - http://www.scopus.com/inward/record.url?scp=85178197953&partnerID=8YFLogxK
U2 - 10.1002/advs.202305777
DO - 10.1002/advs.202305777
M3 - 文章
C2 - 38032171
AN - SCOPUS:85178197953
SN - 2198-3844
VL - 11
JO - Advanced Science
JF - Advanced Science
IS - 4
M1 - 2305777
ER -