Solution-Gated Epitaxial Graphene as pH Sensor

A solution-gate field effect transistor has been fabricated on few-layer graphene

Priscilla Kailian Ang; Wei Chen; Andrew Thye Shen Wee; Kian Ping Loh

2008

Key concepts

Scholarcy highlights

  • A solution-gate field effect transistor has been fabricated on few-layer graphene
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  • The shift of the negative gate potential with pH shows a supra-Nernstian response of 99 meV/pH
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