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Luminescent nanoparticles and methods for their preparation

  • US 20060057382A1
  • Filed: 11/09/2004
  • Published: 03/16/2006
  • Est. Priority Date: 07/20/2001
  • Status: Active Grant
First Claim
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1. A luminescent nanoparticle prepared according to a method comprising the steps of:

  • a) providing a semiconductive core;

    b) admixing with the core i. a first shell precursor, ii. a second shell precursor, iii. a solvent and iv. an additive comprising an element selected from the group consisting of a Group 2 element, a Group 12 element, a Group 13 element, a Group 14 element, a Group 15 element, a Group 16 element, Fe, Nb, Cr, Mn, Co, Cu, and Ni, to form a reaction dispersion; and

    c) heating the reaction dispersion to a temperature for a period of time sufficient to induce formation of an inorganic shell on the semiconductive core.

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