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Multi-layer-coated quantum dot beads

  • US 9,443,998 B2
  • Filed: 03/13/2014
  • Issued: 09/13/2016
  • Est. Priority Date: 03/14/2013
  • Status: Expired due to Fees
First Claim
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1. A composition of matter comprising a plurality of beads, wherein each bead comprises:

  • a primary matrix material;

    a population of quantum dot nanoparticles incorporated into the primary matrix material; and

    a multi-layer surface coating on each bead, the multi-layer surface coating comprising at least two barrier layers separated by at least one spacer layer.

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