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US 8,003,010 B2Granted
Water-stable III-V semiconductor nanocrystal complexes and methods of making same
AssigneeSamsung Electronics Co., Ltd.
InventorsDaniel Landry, Wei Lui, Adam Peng
Life of this patent
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Abstract
A water-stable semiconductor nanocrystal complex that is stable and has high luminescent quantum yield. The water-stable semiconductor nanocrystal complex has a semiconductor nanocrystal core of a III-V semiconductor nanocrystal material and a water-stabilizing layer. A method of making a water-stable semiconductor nanocrystal complex is also provided.
Claims20
A water-stable semiconductor nanocrystal complex comprising:
- a semiconductor nanocrystal composition comprising:
- a III-V semiconductor nanocrystal core;
- a metal layer formed on an outer surface of the semiconductor nanocrystal core;
- and
- a shell comprising a semiconductor material overcoating the metal layer;
- a surface layer comprising molecules having a moiety with an affinity for the semiconductor nanocrystal composition and a moiety with an affinity for a hydrophobic solvent;
- and
- a water-stabilizing layer having a hydrophobic end for interacting with the surface layer and a hydrophilic end, wherein the water-stable semiconductor nanocrystal complex is electronically and chemically stable with a luminescent quantum yield of at least 45% as measured under ambient conditions.
5 more elements
A water-stable semiconductor nanocrystal complex comprising:
- a semiconductor nanocrystal composition comprising:
- a III-V semiconductor nanocrystal core;
- a metal layer formed on an outer surface of the semiconductor nanocrystal core;
- and
- a shell comprising an anion layer overcoating the metal layer and a second metal layer overcoating the anion layer;
- a surface layer comprising molecules having a moiety with an affinity for the semiconductor nanocrystal composition and a moiety with an affinity for a hydrophobic solvent;
- and
- a water-stabilizing layer having a hydrophobic end for interacting with the surface layer and a hydrophobic end, wherein the water-stable semiconductor nanocrystal complex is electronically and chemically stable with a luminescent quantum yield of at least 45% as measured under ambient conditions.
5 more elements
Dependencies are inferred from the claim text.