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    • 62. 发明申请
    • PREPARATION OF NANOPARTICLES WITH NARROW LUMINESCENCE
    • 具有纳米光致发光的纳米颗粒的制备
    • US20130062565A1
    • 2013-03-14
    • US13608055
    • 2012-09-10
    • Michael Alan SCHREUDERPeter Neil TAYLOR
    • Michael Alan SCHREUDERPeter Neil TAYLOR
    • C09K11/06C09K11/65B82Y30/00B82Y40/00
    • C09K11/06Y10S977/813Y10S977/815
    • A population of light-emissive nitride nanoparticles has a photoluminescence quantum yield of at least 10% and an emission spectrum having a full width at half maximum intensity (FWHM) of less than 100 nm. One suitable method of producing light-emissive nitride nanoparticles comprises a first stage of heating a reaction mixture consisting essentially of nanoparticle precursors in a solvent, the nanoparticle precursors including at least one metal-containing precursor and at least one first nitrogen-containing precursor, and maintaining the reaction mixture at a temperature to seed nanoparticle growth. It further comprises a second stage of adding at least one second nitrogen-containing precursor to the reaction mixture thereby to promote nanoparticle growth.
    • 发光氮化物纳米颗粒群的光致发光量子产率至少为10%,发射光谱具有半峰强度(FWHM)的全宽小于100nm。 制备发光氮化物纳米颗粒的一种合适的方法包括:在溶剂中加热基本上由纳米颗粒前体组成的反应混合物的第一阶段,所述纳米颗粒前体包括至少一种含金属前体和至少一种第一含氮前体,以及 将反应混合物保持在使纳米颗粒生长的温度。 其还包括向反应混合物中加入至少一个第二含氮前体的第二阶段,从而促进纳米颗粒的生长。