A highly stretchable humidity sensor based on spandex covered yarns and nanostructured polyaniline. Issue 2 (3rd January 2018)

• Record Type: Journal Article
• Authors: Guo, Ya-Nan; Gao, Zhi-Yuan; Wang, Xiao-Xiong; Sun, Li; Yan, Xu; Yan, Shi-Ying; Long, Yun-Ze; Han, Wen-Peng
• Is Part Of: RSC advances. Volume 8:Issue 2(2018)
• Page Start: 1078
• Page End: 1082
• Publication Date: 2018-01-03
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c7ra10474j
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : In this work, a highly stretchable humidity sensor based on spandex covered yarns and nanostructured polyaniline was fabricated, and maintains its humidity sensitivity well at different elongations. Abstract : Stretchable sensors, as the important components of flexible electronic devices, have achieved progress in a variety of applications for monitoring physical or environmental conditions, such as sound, temperature, vibration, and pressure. However, it still remains a challenge to fabricate high performance stretchable humidity sensors. Herein, we present a novel stretchable humidity sensor, which was fabricated based on an ultrastretchable polyaniline composite fiber. Because of the composite fiber with a "twining spring" configuration (cotton fibers twining spirally around a polyurethane fiber) it maintains a stable electrical conductivity up to a strain of 200%. In addition, the conductivity of the composite fiber remains perfectly stable after 5000 cyclic stretching events of 200% strain. Incorporating the humidity sensitive properties of nanostructured polyaniline, the stretchable humidity sensor based on the composite fiber effectively maintains its humidity sensitivity at different elongations.