High resolution core level spectroscopy of hydrogen-terminated (1 0 0) diamond

A. K. Schenk, K. J. Rietwyk, A. Tadich, A. Stacey, L. Ley, C. I. Pakes

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Abstract

Synchrotron-based photoelectron spectroscopy experiments are presented that address a long standing inconsistency in the treatment of the C1s core level of hydrogen terminated (1 0 0) diamond. Through a comparison of surface and bulk sensitive measurements we show that there is a surface related core level component to lower binding energy of the bulk diamond component; this component has a chemical shift of -0.16±0.05 eV which has been attributed to carbon atoms which are part of the hydrogen termination. Additionally, our results indicate that the asymmetry of the hydrogen terminated (1 0 0) diamond C1s core level is an intrinsic aspect of the bulk diamond peak which we have attributed to sub-surface carbon layers.

Original languageEnglish
Article number305001
JournalJournal of Physics Condensed Matter
Volume28
Issue number30
DOIs
StatePublished - 14 Jun 2016

Bibliographical note

Publisher Copyright:
© 2016 IOP Publishing Ltd.

Funding

We acknowledge financial support from the Australian Research Council. Measurements were performed at the Soft X-ray Beamline of the Australian Synchrotron, hydrogen termination was performed at the Melbourne Center for Nanofabrication (MCN).

FundersFunder number
Australian Research Council

    Keywords

    • diamond (1 0 0) surface
    • hydrogen-terminated diamond
    • photoelectron spectroscopy

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