FLUORESCENT DIAMOND PARTICLES
    4.
    发明申请

    公开(公告)号:US20190292451A1

    公开(公告)日:2019-09-26

    申请号:US16436273

    申请日:2019-06-10

    IPC分类号: C09K11/65 C09K11/02

    摘要: A fluorescent diamond particle, characterized by having a surface and a diamond lattice; the particle comprising a core and a region within approximately 3 nm of the surface of the particle enriched with fluorescent color centers, where the near surface enrichment with color centers is enriched by a treatment providing in-diffusion of external dopants, as compared to particles which have not undergone the treatment. The dopant is selected from the group consisting of a nitrogen atom, a group of nitrogen atoms, silicon, and a combination thereof.

    Fluorescent diamond particles
    5.
    发明授权

    公开(公告)号:US10723944B2

    公开(公告)日:2020-07-28

    申请号:US16436273

    申请日:2019-06-10

    IPC分类号: C09K11/65 C09K11/02

    摘要: A fluorescent diamond particle, characterized by having a surface and a diamond lattice; the particle comprising a core and a region within approximately 3 nm of the surface of the particle enriched with fluorescent color centers, where the near surface enrichment with color centers is enriched by a treatment providing in-diffusion of external dopants, as compared to particles which have not undergone the treatment. The dopant is selected from the group consisting of a nitrogen atom, a group of nitrogen atoms, silicon, and a combination thereof.

    Fluorescent diamond particles
    6.
    发明授权

    公开(公告)号:US10364389B1

    公开(公告)日:2019-07-30

    申请号:US14484905

    申请日:2014-09-12

    IPC分类号: C09K11/65 C09K11/02

    摘要: A method of processing diamond particles to form fluorescent color centers involves providing diamond particles containing at least one dopant; annealing the diamond particles in a vacuum or an inert atmosphere; creating vacancies in the annealed diamond particles by irradiating the diamond particles with high energy radiation; and while the annealed diamond particles are being irradiated, causing a temperature of the diamond particles to be at least a temperature at which vacancies in the diamond particles diffuse and combine with the at least one dopant to form fluorescent color centers. The procedure can be repeated at least twice. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.