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Semiconductor nanocrystals covalently bound to solid inorganic surfaces using self-assembled monolayers

United States Patent

5,751,018
May 12, 1998
View the Complete Patent at the US Patent & Trademark Office
Lawrence Berkeley National Laboratory - Visit the Technology Transfer and Intellectual Property Management Department Website
Methods are described for attaching semiconductor nanocrystals to solid inorganic surfaces, using self-assembled bifunctional organic monolayers as bridge compounds. Two different techniques are presented. One relies on the formation of self-assembled monolayers on these surfaces. When exposed to solutions of nanocrystals, these bridge compounds bind the crystals and anchor them to the surface. The second technique attaches nanocrystals already coated with bridge compounds to the surfaces. Analyses indicate the presence of quantum confined clusters on the surfaces at the nanolayer level. These materials allow electron spectroscopies to be completed on condensed phase clusters, and represent a first step towards synthesis of an organized assembly of clusters. These new products are also disclosed.
Alivisatos; A. Paul (Berkeley, CA), Colvin; Vicki L. (Berkeley, CA)
The Regents of the University of CAlifornia (Oakland, CA)
08/ 235,265
April 29, 1994
REFERENCE TO GOVERNMENT SUPPORT This invention was made with Government support under Contract No. DE-AC03-76SF00098 between the United States Department of Energy and the University of California for the operation of Lawrence Berkeley Laboratory. The Government has certain rights to this invention.