| 摘要 |
<p>A population of light-emissive nitride nanoparticles are grown so as to have a photoluminescence quantum yield of at least 10% and an emission spectrum having a full width at half maximum intensity (FWHM) of less than 100 nm. The narrow spectrum is due to the nanoparticles to have good uniformity of nanoparticle size, that is less variation in size between nanoparticles. A suitable method of producing such light-emissive nitride nanoparticles comprises a first stage of heating a reaction mixture consisting essentially of nanoparticle precursors in a solvent, the nanoparticle precursors including at least one metal-containing precursor and at least one first nitrogen-containing precursor, and maintaining the reaction mixture at a temperature to seed nanoparticle growth. It further comprises a second stage of adding at least one second nitrogen-containing precursor to the reaction mixture thereby to promote nanoparticle growth.</p> |
