Nanoparticles
AssigneeSharp Kabushiki Kaisha
InventorsPeter Neil Taylor, Jonathan Heffernan
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Abstract
The present application provides a light-emissive nitride nanoparticle, for example a nanocrystal, having a photoluminescence quantum yield of at least 1%. This quantum yield is significantly greater than for prior nitride nanoparticles, which have been only weakly emissive and have had poor control over the size of the nanoparticles produced. The nanoparticle includes at least one capping agent provided on a surface of the nitride crystal and containing an electron-accepting group for passivating nitrogen atoms at the surface of the crystal. The invention also provides non-emissive nitride nanoparticles.
Claims34
A nitride nanoparticle, the nanoparticle comprising at least one capping agent containing at least one of an electron-donating functional group and an electron accepting functional group, the nanoparticle being a light-emissive nanoparticle and having a photoluminescence quantum yield of at least 1%.
A nitride nanoparticle comprising:
- a nitride crystal, at least one dimension of the nitride crystal being of a nanoscale dimension;
- and at least one capping agent provided on a surface of the nitride crystal and containing an electron-accepting functional group, the electron accepting functional group containing a metal, boron or silicon.
A nanoparticle comprising:
- a core;
- a nitride layer disposed around the core;
- and at least one capping agent provided on a surface of the nitride layer and containing an electron-accepting functional group, the electron accepting functional group containing a metal, boron or silicon.
Dependencies are inferred from the claim text.