DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Solution synthesis of germanium nanocrystals

Abstract

A method for providing a route for the synthesis of a Ge(0) nanometer-sized material from. A Ge(II) precursor is dissolved in a ligand heated to a temperature, generally between approximately 100.degree. C. and 400.degree. C., sufficient to thermally reduce the Ge(II) to Ge(0), where the ligand is a compound that can bond to the surface of the germanium nanomaterials to subsequently prevent agglomeration of the nanomaterials. The ligand encapsulates the surface of the Ge(0) material to prevent agglomeration. The resulting solution is cooled for handling, with the cooling characteristics useful in controlling the size and size distribution of the Ge(0) materials. The characteristics of the Ge(II) precursor determine whether the Ge(0) materials that result will be nanocrystals or nanowires.

Inventors:
 [1];  [2];  [3]
  1. Albuquerque, NM
  2. Kensington, MD
  3. Cuyahoga Falls, OH
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
971621
Patent Number(s):
7591871
Application Number:
11/060,157
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Gerung, Henry, Boyle, Timothy J, and Bunge, Scott D. Solution synthesis of germanium nanocrystals. United States: N. p., 2009. Web.
Gerung, Henry, Boyle, Timothy J, & Bunge, Scott D. Solution synthesis of germanium nanocrystals. United States.
Gerung, Henry, Boyle, Timothy J, and Bunge, Scott D. Tue . "Solution synthesis of germanium nanocrystals". United States. https://www.osti.gov/servlets/purl/971621.
@article{osti_971621,
title = {Solution synthesis of germanium nanocrystals},
author = {Gerung, Henry and Boyle, Timothy J and Bunge, Scott D},
abstractNote = {A method for providing a route for the synthesis of a Ge(0) nanometer-sized material from. A Ge(II) precursor is dissolved in a ligand heated to a temperature, generally between approximately 100.degree. C. and 400.degree. C., sufficient to thermally reduce the Ge(II) to Ge(0), where the ligand is a compound that can bond to the surface of the germanium nanomaterials to subsequently prevent agglomeration of the nanomaterials. The ligand encapsulates the surface of the Ge(0) material to prevent agglomeration. The resulting solution is cooled for handling, with the cooling characteristics useful in controlling the size and size distribution of the Ge(0) materials. The characteristics of the Ge(II) precursor determine whether the Ge(0) materials that result will be nanocrystals or nanowires.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {9}
}

Works referenced in this record:

Synthesis of Germanium Nanocrystals in High Temperature Supercritical Fluid Solvents
journal, May 2004


Synthesis and optical properties of colloidal germanium nanocrystals
journal, June 2001


Solution Synthesis of Germanium Nanocrystals Demonstrating Quantum Confinement
journal, January 1998


Solution Synthesis of Germanium Nanocrystals:  Success and Open Challenges
journal, April 2004


Synthesis of Coinage-Metal Nanoparticles from Mesityl Precursors
journal, July 2003