METHOD TO PRODUCE LIGHT-EMITTING NANO-PARTICLES OF DIAMOND

摘要

Method to produce diamonds containing Nitrogen-Vacancy centres from diamonds grown by a high pressure and high temperature process and containing isolated substitutional nitrogen, comprising:-Irradiating (12) said diamonds by an electron beam such that the irradiation dose is comprised between 10and 10electrons per square centimeter;-annealing (14) the irradiated diamonds in vacuum or in a inert atmosphere at a temperature above 700°C and for at least 1 hour; characterized in that said electron beam has an acceleration energy above 7 MeV.