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Hydrogenation and oxygenation of the (100) diamond surface and the consequences for transfer doping

Lookup NU author(s): Professor Patrick Briddon

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Abstract

Ab initio density-functional-theory calculations have been performed to determine the structural and electronic properties of the (100) diamond surface with various hydrogen and oxygen terminations. Total energies indicate that an -OH-terminated surface is favoured over an oxygenated surface plus gas-phase hydrogen. Ionisation potentials and electron affinities (EAs) are reported for the different systems, and the distinction is made between bulk- and surface-related properties. A first-order correction is used to offer estimated surface EAs. A negative bulk EA is found for surfaces terminated with -H and -OH groups, although many surfaces have deep traps which can act as positive EA in the absence of band bending. © 2005 WILEY-VCH Verlag GmbH & Co. KGaA.


Publication metadata

Author(s): Sque SJ, Jones R, Briddon PR

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 10th International Workshop on Surface and Bulk Defects in CVD Diamond Films

Year of Conference: 2005

Pages: 2091-2097

ISSN: 1862-6300

Publisher: Physica Status Solidi (A) Applications and Materials

URL: http://dx.doi.org/10.1002/pssa.200561911

DOI: 10.1002/pssa.200561911

Library holdings: Search Newcastle University Library for this item

ISBN: 18626319


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