Metal chalcogenide synthesis method and applications
AssigneeCornell University
InventorsHaitao Zhang, Richard D. Robinson
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Abstract
A method for synthesizing a metal chalcogenide nanocrystal (NC) material includes reacting a metal material and an ammonium chalcogenide material in an organic solvent material. The method provides that the metal chalcogenide nanocrystal material may be synthesized by a heating-up method at large scale (i.e., greater than 30 grams). Ammonium chalcogenide salts exhibit high reactivity and metal chalcogenide nanocrystals can be synthesized at low temperatures (i.e., less than 200° C.) with high conversion yields (i.e., greater than 90 percent).
Claims18
A synthetic method comprising reacting at a temperature of less than about 150° C. in an organic solvent material comprising a primary organic amine, a metal material, and an ammonium chalcogenide material, to form a metal chalcogenide nanocrystal material, wherein the metal chalcogenide nanocrystal material has a dispersity less than 10 percent.
A synthetic method comprising reacting in an anhydrous organic solvent material comprising an anhydrous primary organic amine at a temperature less than 100 degrees centigrade a metal material and an ammonium chalcogenide material to form a metal chalcogenide nanocrystal material, wherein the reacting produces greater than 30 grams of metal chalcogenide nanocrystal material in a single reaction batch.
Dependencies are inferred from the claim text.