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The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.

Solution-Gated Epitaxial Graphene as pH Sensor

Ang, Priscilla Kailian, Chen, Wei, Wee, Andrew Thye Shen, Loh, Kian Ping·2008·Journal of the American Chemical Society

Abstract

A solution-gate field effect transistor (SGFET) has been fabricated on few-layer graphene (FLG). The ideally polarizable graphene/aqueous electrolyte interface allows the capacitive charging of the surface by hydroxyl (OH-) and hydroxonium ions (H3O+). The conductivity versus gate potential curve exhibits "V" shaped ambipolar transfer characteristics of graphene, with hole and electron mobilities of 3600 cm2/Vs and 2100 cm2/Vs, respectively. The shift of the negative gate potential with pH shows a supra-Nernstian response of 99 meV/pH. Our work points to the potential application of graphene in ultrafast and ultralow noise chemical or biological sensors.

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Metadata

Authors
Ang, P. K., Chen, W., Wee, A. T. S., & Loh, K. P.
Venue
Journal of the American Chemical Society
Published
2008-10-14
Volume
130
Issue
44
Pages
14392-14393
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W2023711677
Cited by
723
References
2
FWCI
31.59
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Solution-Gated Epitaxial Graphene as pH Sensor. https://app.cochat.ai/papers/10.1021/ja805090z
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Ang, P. K., Chen, W., Wee, A. T. S., & Loh, K. P. (2008). Solution-Gated Epitaxial Graphene as pH Sensor. Journal of the American Chemical Society. https://doi.org/10.1021/ja805090z

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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.