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US 6,576,291 B2Granted
Preparation of nanocrystallites
AssigneeMassachusetts Institute of Technology
InventorsMoungi Bawendi, Nathan E. Stott
Life of this patent
Estimating the term…
Abstract
A method of manufacturing a nanocrystallite from a M-containing salt forms a nanocrystallite. The nanocrystallite can be a member of a population of nanocrystallites having a narrow size distribution and can include one or more semiconductor materials. Semiconducting nanocrystallites can photoluminesce and can have high emission quantum efficiencies.
Claims28
A method of manufacturing a nanocrystallite, comprising:
- contacting a metal, M, or an M-containing salt, and a reducing agent to form an M-containing precursor, M being Cd, Zn, Mg, Hg, Al, Ga, In, or Tl;
- contacting the M-containing precursor with an X donor, X being O, S, Se, Te, N, P, As, or Sb to form a mixture;
- and
- heating the mixture in the presence of an amine to form the nanocrystallite.
1 more element
A method of manufacturing a nanocrystallite, comprising:
- contacting a metal, M, or an M-containing salt, and a reducing agent to form an M-containing precursor, M being Cd, Zn, Mg, Hg, Al, Ga, In, or Tl;
- contacting the M-containing precursor with an X donor, X being O, S, Se, Te, N, P, As, or Sb to form a mixture;
- and
- heating the mixture to form the nanocrystallite.
1 more element
A method of manufacturing a nanocrystallite, comprising:
- contacting a metal, M, or an M-containing salt, M being Cd, Zn, Mg, Hg, Al, Ga, In, or Tl, a reducing agent, an amine, and an X donor, X being O, S, Se, Te, N, P, As, or Sb to form a mixture;
- and
- heating the mixture to form the nanocrystallite.
A method of overcoating a core nanocrystallite comprising:
- contacting a core nanocrystallite population with an M-containing salt, M being Cd, Zn, Mg, Hg, Al, Ga, In, or Tl, an X donor, X being O, S, Se, Te, N, P, As, or Sb, and an amine to form a mixture, and
- forming an overcoating having the formula MX on a surface of the core.
Dependencies are inferred from the claim text.