Method of synthesizing colloidal nanocrystals

Details Method of synthesizing colloidal nanocrystals Method of synthesizing colloidal nanocrystals

2007-09-11

2007-09-11

Vanoy, Timothy C. (Department: 1754)

Chemistry of inorganic compounds

Selenium or tellurium or compound thereof

C423S509000, C423S561100, C423S566100, C423S592100, C977S813000, C977S773000, C977S774000, C977S775000, C977S824000, C977S825000

Reexamination Certificate

active

11024823

ABSTRACT:
A method of making nanocrystals involves adding a chalocogen source to a hot solution of a metal-containing non-organometallic compound, such as CdO, in a first ligand solvent, such as TOP, and preferably subsequently cooling the resulting mixture to a lower temperature to grow the nanocrystals at said lower temperature. The method can involve either one ligand or two-ligand systems.

REFERENCES:
patent: 5985173 (1999-11-01), Gray et al.
patent: 6106609 (2000-08-01), Yang et al.
patent: 6821337 (2004-11-01), Bawendi et al.
patent: WO 02/29140 (2002-04-01), None
patent: WO 03/012006 (2003-02-01), None
Peng, Adam Z. et al: Formation of High-Quality CdTe, CdSe, and CdS Nanocrystals Using CdO as Precursor, American Chemical Society, 2001, p. 183-184, vol. 123, United States of America.
Murray, C. B. et al: Synthesis and Characterization of Nearly Monodisperse CdE (E= S, Se, Te) Semiconductor Nanocrystallites, American Chemical Society, 1993, pp. 8706-8715, vol. 115, United States of America.

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