Lookup NU author(s): Professor Patrick Briddon
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It has been commonly thought that diamond is unique in its class in that it can undergo p-type transfer doping when covered by a thin layer of electrolyte. In this study, density-functional theory has been used to show that the work functions of graphite and graphene are low enough for transfer doping to occur between a graphite or graphene substrate and an aqueous adsorbate layer. The possible electrochemical reactions are the same as those favoured in the case of diamond, e.g. O2 + 2H2O + 4e- → 4OH -, where the electrons have been provided by the graphite or graphene substrate. Notably, the extraordinary nature of carrier transport in (single-layer) graphene renders this non-disruptive doping method an exciting possibility. © 2007 WILEY-VCH Verlag GmbH & Co. KGaA.
Author(s): Sque SJ, Jones R, Briddon PR
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: 12th Hasselt Diamond Workshop 2007 (SBDD XII)
Year of Conference: 2007
Publisher: Physica Status Solidi (A) Applications and Materials, Wiley-Blackwell
Library holdings: Search Newcastle University Library for this item