Ontology highlight
ABSTRACT:
SUBMITTER: Ju W
PROVIDER: S-EPMC9863439 | biostudies-literature | 2023 Jan
REPOSITORIES: biostudies-literature
Nanomaterials (Basel, Switzerland) 20230105 2
A graphene-based capacitive NO<sub>2</sub> sensing device was developed by utilizing the quantum capacitance effect. We have used a graphene field-effect transistor (G-FET) device whose geometrical capacitance is enhanced by incorporating an aluminum back-gate electrode with a naturally oxidized aluminum surface as an insulating layer. When the graphene, the top-side of the device, is exposed to NO<sub>2</sub>, the quantum capacitance of graphene and, thus, the measured capacitance of the device ...[more]