In Situ Formation of Ag Nanoparticles for Fiber Strain Sensors: Toward Textile-Based Wearable Applications

Wearable electronic devices have attracted significant attention as important components in several applications. Among various wearable electronic devices, interest in textile electronic devices is increasing because of their high deformability and portability in daily life. To develop textile elec...

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Bibliographic Details
Published in:	ACS applied materials & interfaces Vol. 13; no. 33; pp. 39868 - 39879
Main Authors:	Kim, Hwajoong, Shaqeel, Ammar, Han, Solbi, Kang, Junseo, Yun, Jieun, Lee, Mugeun, Lee, Seonggyu, Kim, Jinho, Noh, Seungbeom, Choi, Minyoung, Lee, Jaehong
Format:	Journal Article
Language:	English
Published:	American Chemical Society 25-08-2021
Subjects:	Applications of Polymer, Composite, and Coating Materials fiber strain sensor textile electronics resistive strain sensor stretchable electronics wearable electronics
Online Access:	Get full text
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Summary:	Wearable electronic devices have attracted significant attention as important components in several applications. Among various wearable electronic devices, interest in textile electronic devices is increasing because of their high deformability and portability in daily life. To develop textile electronic devices, fiber-based electronic devices should be fundamentally studied. Here, we report a stretchable and sensitive fiber strain sensor fabricated using only harmless materials during an in situ formation process. Despite using a mild and harmless reducing agent instead of typical strong and hazardous reducing agents, the developed fiber strain sensors feature a low initial electrical resistance of 0.9 Ω/cm, a wide strain sensing range (220%), high sensitivity (∼5.8 × 104), negligible hysteresis, and high stability against repeated stretching–releasing deformation (5000 cycles). By applying the fiber sensors to various textiles, we demonstrate that the smart textile system can monitor various gestures in real-time and help users maintain accurate posture during exercise. These results will provide meaningful insights into the development of next-generation wearable applications.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1944-8244 1944-8252
DOI:	10.1021/acsami.1c09879