Method for manufacturing a nanoparticle, method for manufacturing a light-emitting element having the nanoparticle, and method for manufacturing a display substrate having the nanoparticle

摘要

In a method for manufacturing a nanoparticle, a precursor (e.g., transition metal complex) mixed with polyethylene glycol (PEG) is thermally decomposed. A nanoparticle is formed from the thermal decomposition. PEG is cost effective and less toxic than chemicals that are conventionally used for nanoparticle production, so that costs for manufacturing the nanoparticle may be decreased. Further, PEG may be reused to produce more nanoparticles.

主权项

1. A method for manufacturing a nanoparticle, the method comprising:
mixing a precursor with polyethylene glycol (PEG) to form a first mixture, wherein the precursor comprises a first transition metal complex comprising a first transition metal that forms a core of the nanoparticle; thermally decomposing the first mixture to form the core of the nanoparticle in the PEG; after thermal decomposition, mixing a hydrophobic solution having a higher hydrophobicity than the PEG into the PEG containing the nanoparticle to dissolve the nanoparticle into the hydrophobic solution and to precipitate the PEG to solid-state PEG; separating the solid-state PEG from the hydrophobic solution including the dissolved nanoparticle; heating the solid-state PEG to transform solid-state PEG into liquid-state PEG; and reusing the liquid-state PEG to manufacture another nanoparticle.