Controlled Synthesis of Nanocrystals and Nanoparticles by a Gas-Emulsion Process
The invention describes a novel generic process to synthesize II-VI (ZnSe, CdSe, etc.) semiconductor nanocrystals of uniform size by bubbling a gas through a preprepared colloidal suspension. The several bubbles formed are of uniform size and functio n as nanoreactor receptacles in which the nanocrystals are formed. This guarantees near absolute uniformity in the sizes of the nanocrystals. The value propositions are:
a)Control over nanoscale dimensions of the crystals. b)Synthesis at room te mperature. c)Simplicity of the process and low costs of process set up and inputs. d)Easy upward (commercial) scalability. e)Versatility to include other materials and combinations of materials, etc.
This invention is a generic process to synt hesize II-VI semiconductor nanocrystals with wide scope in potential application and commercialization. These materials are primarily used in optical sensors and other optical devices, bio-tracers and markers, semiconductor electronics, etc.
Categories: Nanotechnology, Research Tool
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