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Triboelectric haptic sensors based on fluorinated cellulose/PDMS composite porous films for monitoring joint flexion and smart writing

Nano Energy, ISSN: 2211-2855, Vol: 127, Page: 109735
2024
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Article Description

The surge in interest for wearable electronics has sparked a significant demand for self-powered sensors. This necessitates the development of triboelectric materials that align with the requirements of self-powered sensors for high stability, efficiency, and broad application. Herein, we developed a single-electrode triboelectric sensor (SE-PFCPS) utilizing porous F-CNW/PDMS composite films. The SE-PFCPS demonstrated impressive output performance (V OC of 189.70 V, I SC of 0.88 μA and Q SC of 42.81 μC/m 2 ), while retaining this high level of performance consistently over 12,000 repetitive contact separation motions. Notably, the SE-PFCPS proves its versatility by accurately monitoring human joint flexion, including the palms, wrists, elbows, and knees, as well as human walking, without the need for additional power sources. In addition, the SE-PFCPS's utility extends to tactile sensing applications, enabling functionalities such as direct writing intelligence and the composition of messages in Morse code. The sensor stands out for its stability, efficiency, and applicability across various fields, offering promising prospects for innovations in areas such as digital writing without paper or pens, monitoring of writing habits, and cryptographic transmission of information.

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