Highly Concentrated, Conductive, Defect-free Graphene Ink for Screen-Printed Sensor Application.

ABSTRACT:

Highlights

Ultrathin and defect-free graphene ink is prepared through a high-throughput fluid dynamics process, resulting in a high exfoliation yield (53.5%) and a high concentration (47.5 mg mL^-1). A screen-printed graphene conductor exhibits a high electrical conductivity of 1.49 × 10⁴ S m^-1 and good mechanical flexibility. An electrochemical sodium ion sensor based on graphene ink exhibits an excellent potentiometric sensing performance in a mechanically bent state. Real-time monitoring of sodium ion concentration in sweat is demonstrated. Conductive inks based on graphene materials have received significant attention for the fabrication of a wide range of printed and flexible devices. However, the application of graphene fillers is limited by th

SUBMITTER: Kim DS 

PROVIDER: S-EPMC8006523 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature