Highly stretchable, mechanically stable, and weavable reduced graphene oxide yarn with high NO₂ sensitivity for wearable gas sensors.

ABSTRACT: Stretchable gas sensors are important components of wearable electronic devices used for human safety and healthcare applications. However, the current low stretchability and poor stability of the materials limit their use. Here, we report a highly stretchable, stable, and sensitive NO₂ gas sensor composed of reduced graphene oxide (RGO) sheets and highly elastic commercial yarns. To achieve high stretchability and good stability, the RGO sensors were fabricated using a pre-strain strategy (strain-release assembly). The fabricated stretchable RGO gas sensors showed high NO₂ sensitivity (55% at 5.0 ppm) under 200% strain and outstanding mechanical stability (even up to 5000 cycles at 400% applied strain), making them ideal for wearable electronic applications. In addit

SUBMITTER: Yun YJ 

PROVIDER: S-EPMC9078497 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature