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US 2013/0295586 A1Published application
Preparation of nanocrystals with mixtures of organic ligands
AssigneeLife Technologies Corporation
InventorsJoseph August Bartel, Yongfen Chen, Noah Lermer, Timothy Carter, Scott Sweeney, Chad Teters, Wenxi Huang
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Abstract
Semiconductor nanocrystals prepared using a mixture of organic ligands (e.g., oxoacids), as well as compositions, kits, and methods of using such semiconductor nanocrystals are disclosed.
Claims52
A method for producing a population of semiconductor nanocrystals, comprising:
- combining a plurality of semiconductor nanocrystal cores, at least one solvent, a first semiconductor shell precursor, and a second semiconductor shell precursor, wherein the first and second semiconductor shell precursors are different, and at least two different oxoacid compounds to provide a reaction mixture;
- and
- heating the reaction mixture for a period of time sufficient to induce formation of a semiconductor shell layer on at least one core, thereby producing a population of semiconductor nanocrystals.
A population of semiconductor nanocrystals, wherein each nanocrystal in the population comprises:
- a) a semiconductor core;
- b) an semiconductor shell layer disposed on the semiconductor core;
- and
- c) at least two different oxoacid compounds.
1 more element
A method for producing a population of semiconductor nanocrystals, comprising:
- combining a plurality of semiconductor nanocrystal cores, wherein each core has an aspect ratio of greater than 1:1, at least one solvent, a first semiconductor shell precursor, and a second semiconductor shell precursor, wherein the first and second semiconductor shell precursors are different, and at least two oxoacid compounds to provide a reaction mixture;
- and
- heating the reaction mixture for a period of time sufficient to induce formation of a semiconductor shell layer on at least one core, wherein the aspect ratio of the core-shell nanocrystal is less than the aspect ratio of the nanocrystal core, thereby producing a population of semiconductor nanocrystals.
Dependencies are inferred from the claim text.