A stretchable and highly sensitive chemical sensor using multilayered network of polyurethane nanofibres with self-assembled reduced graphene oxide. (3rd April 2017)

• Record Type: Journal Article
• Authors: Duy, Le Thai; Trung, Tran Quang; Hanif, Adeela; Siddiqui, Saqib; Roh, Eun; Lee, Wonil; Lee, Nae-Eung
• Is Part Of: 2D materials. Volume 4:Number 2(2017)
• Publication Date: 2017-04-03
• Subjects: multilayer -- reduced graphene oxide -- polyurethane nanofibre -- gas sensor -- stretchable electronics; Graphene -- Periodicals; Materials science -- Periodicals; Nanostructured materials -- Periodicals; 620.115
• DOI: 10.1088/2053-1583/aa6783
• Languages: English
• ISSNs: 2053-1583

Abstract

Abstracts: Stretchable chemical sensors for detection of gases/vapours are of great interest for wearable applications in healthcare and environmental safety. Here, we demonstrate a simple but effective approach based on layering electro-spun elastomeric polyurethane (PU) nanofibres to produce stretchable chemically responsive nanohybrids of PU nanofibres with self-assembled reduced-graphene oxide (R-GO). The study using a chemiresistive structure reveals the positive effects of layering the elastomeric fibres of R-GO/PU nanohybrids on both stretching and sensing capabilities. The R-GO/PU devices layered four and five times own excellent sensitivity towards NO2 (50 ppb‒5 ppm at room temperature) as well as mechanical sustainability under static and cyclic stretching tests up to 50% of strain. These stretchable chemiresistors based on multilayering of hybrid fibre network of an elastomer and 2D sensing nanomaterials provides a good premise for wearable chemical sensing applications.