An investigation into the surface termination and near-surface bulk doping of oxygen-terminated diamond with lithium at various annealing temperatures

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Abstract

Abstract: An alternative method of doping and surface functionalization of diamond using a chemical route was explored. The interaction of Li with the surface and bulk of oxygen-terminated diamond was investigated using Angle-Resolved X-ray Photoemission Spectroscopy (ARXPS). A stable LiO2 termination of diamond (100) surface and doping of near-surface diamond bulk was achieved up to an annealing temperature of 850 °C. The changes in interaction between the species involved (C, O, Li) and their stoichiometric ratios at the surface were investigated as a function of annealing temperature. This was done using ARXPS peak analysis. Graphic abstract: [Figure not available: see fulltext.]

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Ullah, S., Cullingford, L., Zhang, T., Wong, J. R., Wan, G., Cattelan, M., & Fox, N. (2021). An investigation into the surface termination and near-surface bulk doping of oxygen-terminated diamond with lithium at various annealing temperatures. MRS Advances, 6(12), 311–320. https://doi.org/10.1557/s43580-021-00060-x

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