Preparation of stable, bright luminescent nanoparticles having compositionally engineered properties

  • US 20050214536A1
  • Filed: 12/13/2004
  • Published: 09/29/2005
  • Est. Priority Date: 12/12/2003
  • Status: Active Grant
First Claim
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1. A method for making a luminescent semiconductor nanoparticle NXAB composed of X, A, and B, wherein X, A, and B are different, said nanoparticle having a peak emission wavelength longer than that of a nanoparticle NXA composed of X and A and longer than that of a nanoparticle NXB composed of X and B, wherein NXA, NXB, and NXAB are identically sized, the method comprising:

  • combining B with X and A in an amount such that the molar ratio B;

    (A+B) is in the range of approximately 0.01 to 0.10 and the molar ratio X;

    (A+B) is in the range of approximately 0.5;

    1.0 to 2;

    1, under reaction conditions effective to provide a nanoparticle.

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