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US 2022/0056337 A1Published application
Luminescent diamond
AssigneeSchlumberger Technology Corporation
InventorJ. Daniel Belnap
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AssigneeSchlumberger Technology Corporation
InventorJ. Daniel Belnap
Estimating the term…
Luminescent diamond is made by subjecting a volume of diamond grains to high-pressure/high-temperature conditions with or without a catalyst to cause the grains to undergo plastic deformation to produce nitrogen vacancy defects in the diamond grains, increasing the luminescent activity/intensity of the resulting diamond material. The consolidated diamond material may be further treated to further increase luminescent activity/intensity, which treatment may comprise reducing the consolidated diamond material to diamond particles, heat treatment in vacuum, and air heat treatment, which reducing process further increases luminescent activity/intensity. The resulting luminescent diamond particles display a level of luminescence intensity greater than that of conventional luminescent nanodiamond, and may be functionalized for use in biological applications.
A method for making luminescent diamond comprising subjecting a volume of precursor diamond grains to a high-pressure/high-temperature condition to cause the grains to undergo plastic deformation to produce nitrogen vacancy defects in the diamond grains, wherein the resulting diamond grains display a level of luminescence intensity that is greater than that of the precursor diamond grains.
A method for making luminescent diamond comprising:
A method for making luminescent diamond comprising the steps of:
Dependencies are inferred from the claim text.