Patent ID: 7582543
Filing Date: 2009-09-01
Classification: B82Y,C01B,C01P,C09C,C09K

Abstract:
1. A liquid-liquid interfacial method for synthesizing colloidal semiconductor nanocrystals, the method comprising: forming a first oil-soluble precursor solution by dissolving a Group IIB metal alkylcarboxylate salt in toluene; adding a capping agent into the first oil-soluble precursor solution; forming a second water-soluble precursor solution by dissolving an alkaline/alkaline earth metal chalcogenide in water; mixing the first and second precursor solutions into a multi-phase system to form colloidal nanocrystals at a liquid-liquid interface of the multi-phase system, wherein said oil-soluble precursor solution and the water-soluble precursor solution are spatially separated in a two-phase system; and making the resulting nanocrystals be capped by and dispersed in an organic phase.