Patent ID: 8845927
Filing Date: 2014-09-30
Classification: B82Y,C09K,C30B,G01N,Y10S

Abstract:
1. A nanoparticle comprising a semiconductor nanocrystal capable of emitting light, the nanoparticle including one or more chemically distinct native ligands attached to a surface thereof, at least one of said ligands being represented by the formula: wherein X represents a phosphonic acid group; Sp represents a spacer group comprising a group capable of allowing a transfer of charge or an insulating group; and Z represents: (i) a reactive group capable of communicating specific chemical properties to the nanoparticle as well as provide specific chemical reactivity to the surface of the nanoparticle, and/or (ii) a group that is cyclic, halogenated, and/or polar a-protic, wherein Z in all cases is not reactive upon exposure to light, and wherein a native ligand is a ligand that attaches or coordinates to the nanoparticle surface during the growth thereof or overcoating thereof with an overcoating material comprising a semiconductor material.