Diamond material
AssigneeElement Six Technologies Limited
InventorsDaniel James Twitchen, Sarah Louise Geoghegan, Neil Perkins
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Abstract
A method of making fancy orange synthetic CVD diamond material is described. The method comprises irradiating a single crystal diamond material that has been grown by CVD to introduce isolated vacancies into at least part of the CVD diamond material and then annealing the irradiated diamond material to form vacancy chains from at least some of the introduced isolated vacancies. Fancy orange CVD diamond material is also described.
Claims5
CVD diamond material graded fancy orange, wherein the concentration of isolated vacancies is <0.3 ppm, wherein the CVD diamond material has a single substitutional nitrogen content of less than 1 ppm, and wherein an absorption at 250 nm in an absorption spectrum measured at room temperature is >5 cm−1 when the absorption spectrum has been scaled to 0 cm−1 at 800 nm.
Dependencies are inferred from the claim text.