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Chemically modulated graphene diodes.

ABSTRACT: We report the manufacture of novel graphene diode sensors (GDS), which are composed of monolayer graphene on silicon substrates, allowing exposure to liquids and gases. Parameter changes in the diode can be correlated with charge transfer from various adsorbates. The GDS allows for investigation and tuning of extrinsic doping of graphene with great reliability. The demonstrated recovery and long-term stability qualifies the GDS as a new platform for gas, environmental, and biocompatible sensors.

SUBMITTER: Kim HY

PROVIDER: S-EPMC3650657 | biostudies-literature | 2013 May

REPOSITORIES: biostudies-literature

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Chemically modulated graphene diodes.

Kim Hye-Young HY Lee Kangho K McEvoy Niall N Yim Chanyoung C Duesberg Georg S GS

Nano letters 20130408 5

We report the manufacture of novel graphene diode sensors (GDS), which are composed of monolayer graphene on silicon substrates, allowing exposure to liquids and gases. Parameter changes in the diode can be correlated with charge transfer from various adsorbates. The GDS allows for investigation and tuning of extrinsic doping of graphene with great reliability. The demonstrated recovery and long-term stability qualifies the GDS as a new platform for gas, environmental, and biocompatible sensors. ...[more]

PMID: 23547771

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