3D-printed graphene/polymer structures for electron-tunneling based devices.

ABSTRACT: Designing 3D printed micro-architectures using electronic materials with well-understood electronic transport within such structures will potentially lead to accessible device fabrication for 'on-demand' applications. Here we show controlled nozzle-extrusion based 3D printing of a commercially available nano-composite of graphene/polylactic acid, enabling the fabrication of a tensile gauge functioning via the readjustment of the electron-tunneling barrier width between conductive graphene-centers. The electronic transport in the graphene/polymer 3D printed structure exhibited the Fowler Nordheim mechanism with a tunneling width of 0.79-0.95 nm and graphene centers having a carrier concentration of 2.66 × 10¹²/cm². Furthermore, a mechanical strain that increases the el

SUBMITTER: Carvalho Fernandes DC 

PROVIDER: S-EPMC7347914 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature