6533b82cfe1ef96bd128f3fe

RESEARCH PRODUCT

A diamond (1 0 0) surface with perfect phase purity

Yevgeniy ShapiroWolfgang HarneitNadine DiekMichael ReichlingRajesh TamangAndriy BorodinOleksiy Dyachenko

subject

Materials scienceAnnealing (metallurgy)technology industry and agricultureAnalytical chemistryGeneral Physics and Astronomychemistry.chemical_elementDiamondengineering.materialOxygenIsotropic etchingNitrogenchemistryX-ray photoelectron spectroscopyengineeringPhysical and Theoretical ChemistryPhase purityStoichiometry

description

Abstract Diamond surfaces with (1 0 0) orientation and perfect phase purity regarding the coexistence of sp3 and sp2 bonding as well as near surface nitrogen implanted layers are repeatedly produced from one sample by a cycle of nitrogen implantation, etching in oxygen and wet chemical etching. Comprehensive surface studies carried out by X-ray photoelectron spectroscopy (XPS) involving a deconvolution of the C 1s peak into contributions of C sp3, C sp2 and C sp3(N) reveal the surface and near-surface phase and stoichiometry. It is demonstrated that efficient etching of nitrogen implanted diamond occurs by high temperature annealing in oxygen and a wet chemical treatment.

https://doi.org/10.1016/j.cplett.2015.10.015