Lookup NU author(s): Mahboubeh Yeganeh,
Dr Abel Brieva,
Professor Lidija Siller,
Dr Yuriy Butenko
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The effect of atomic hydrogen treatment upon the surface of partially graphitized nanodiamonds has been studied by photoemission spectroscopy. The C1s core level peak and valence band spectra of a partially graphitized nanodiamond sample were compared with those following hydrogen treatment and following subsequent annealing. We have observed a difference in the binding energy of the sp(3) component of the C1s peak and in the valence band which we believe can be assigned to either upward or downward band bending due to surface graphitization and hydrogenation of nanodiamonds, respectively. The data confirms that the graphitic layers which initially cover the nanodiamond particles can be removed through exposure to atomic hydrogen. This method could enable the preparation of hydrogen terminated and separate nanodiamond particles.
Author(s): Yeganeh M; Siller L; Butenko YV; Brieva AC; Dhanak VR; Coxon PR
Publication type: Article
Publication status: Published
Journal: Physical Review B: Condensed Matter and Materials Physics
Print publication date: 15/04/2007
Online publication date: 05/04/2007
ISSN (print): 1098-0121
ISSN (electronic): 1550-235X
Publisher: American Physical Society
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