DataVXACS Applied Materials & InterfacesPaper
journal article·2021-12-22

Skin-Driven Ultrasensitive Mechanoluminescence Sensor Inspired by Spider Leg Joint Slits

Hongze Ji, Yongtao Tang, Bin Shen, Xin Qian, Zheren Cai, Fengyu Li, Meng Su, Lei Wu, Ying Ma, Yanlin Song

ACS Applied Materials & Interfaces· Volume 13· Issue 50
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Source abstract

Abstract

Inspired by the spider's slit organ embedded in the leg joint exoskeleton and its ultrasensitive stress perception, we propose to fix the conflict between the stress concentration requirement for bright mechanoluminescence (ML) and the stress dispersion effect of soft material via integrating slit microstructures into flexible films. The designed slits focus weak stresses onto the corner to achieve high sensitivity, leading to 10-30 times ML intensity improvement at weak strain (<10% stretch) application. Slit morphology and various patterns were well investigated to address the stress distribution regularity. The slit-based ML film offers a facile light-luminescent artificial skin for visualizable stress presentations or detections without electricity power source. It is a practical endeavor of photonic skin for visible vocalization and a significant contribution to dysaudia auxiliary or luminescence augmented expressions for human social interactions, similar to jellyfish or squids.
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Research context

OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Interactive and Immersive Displays · Tactile and Sensory Interactions

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Materials Science and Engineering, Shenyang Jianzhu University, Shenyang 110168, China

College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou 510632, China

Key Laboratory of Green Printing, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China

College of Chemistry, Zhengzhou University, Zhengzhou 450001, China

Funding

Ministry of Science and Technology of the People's Republic of China · Youth Innovation Promotion Association of the Chinese Academy of Sciences · National Natural Science Foundation of China · Beijing National Laboratory for Molecular Sciences

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