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Ultrasensitive and Highly Selective Graphene-Based Single Yarn for Use in Wearable Gas Sensor

2015; Nature Portfolio; Volume: 5; Issue: 1 Linguagem: Inglês

10.1038/srep10904

2045-2322

Yong Ju Yun, Won G. Hong, Nak-Jin Choi, Byung Hoon Kim, Yongseok Jun, Hyung‐Kun Lee,

Analytical Chemistry and Sensors

Abstract Electric components based on fibers or textiles have been investigated owing to their potential applications in wearable devices. High performance on response to gas, drape-ability and washing durability are of important for gas sensors based on fiber substrates. In this report, we demonstrate the bendable and washable electronic textile ( e -textile) gas sensors composed of reduced graphene oxides (RGOs) using commercially available yarn and molecular glue through an electrostatic self-assembly. The e -textile gas sensor possesses chemical durability to several detergent washing treatments and mechanical stability under 1,000 bending tests at an extreme bending radius of 1 mm as well as a high response to NO 2 gas at room temperature with selectivity to other gases such as acetone, ethanol, ethylene and CO 2 .