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US 7,972,437 B2Granted
Hollow nanocrystals and method of making
AssigneeThe Regents of the University of California
InventorsA. Paul Alivisatos, Yadong Yin, Can Kerem Erdonmez
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Abstract
Described herein are hollow nanocrystals having various shapes that can be produced by a simple chemical process. The hollow nanocrystals described herein may have a shell as thin as 0.5 nm and outside diameters that can be controlled by the process of making.
Claims33
A hollow nanocrystal, comprising:
- a nanocrystal shell having a thickness of at least 0.5 nm, said nanocrystal shell enveloping an empty space and lacking a core, wherein, said nanocrystal shell forms a continuous three dimensional domain adopting a three dimensional arrangement of atoms in contrast to molecular sheets and is not perfectly single crystalline.
A method of making a hollow nanocrystal, comprising
- providing a nanocrystal comprising a first material,
- reacting the nanocrystal with a second material,
- wherein the first and second material react to form a shell of a hollow nanocrystal that forms a continuous three dimensional domain adopting a three dimensional arrangement of atoms in contrast to molecular sheets and is not perfectly single crystalline, and wherein said hollow nanocrystal shell enveloping an empty space and lacking a core.
A method of making a hollow nanocrystal, comprising:
- providing a nanocrystal comprising a first material,
- reacting the nanocrystal with a second material,
- wherein a substantial fraction of the first material reacts with the second material to form a shell of a hollow nanocrystal in a single step without additional material removal steps, and wherein said hollow nanocrystal shell enveloping an empty void or multiple voids wherein, said nanocrystal shell forms a continuous three dimensional domain adopting a three dimensional arrangement of atoms in contrast to molecular sheets and is not perfectly single crystalline.
Dependencies are inferred from the claim text.