Integration of graphene oxide on nylon/polyester/cotton fabrics for a wearable electronic nose sensor

Abstract

This work presents a facile solution method to fabricate graphene oxide (GO) on fabrics for a wearable electronic nose sensor. Three types of fabrics such as nylon, polyester, and cotton were used as wearable substrates. Thin PVC film was laminated on the fabrics to promote deposition of electrodes on the fabrics. To determine types of solution for constructing GO on the fabrics, water and ethanol were compared as typical solvents to disperse GO. Water distributed GO nanoflake was uniformly coated on the fabrics by simple drop coating. Room temperature gas sensing was examined with GO integrated on the fabrics, and it exhibited n-type gas sensing behavior on 100 ppm ammonia and its response showed comparable values in resistance change with flat substrates.