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Title: Electrochemical assembly of organic molecules by the reduction of iodonium salts

Abstract

Methods are described for the electrochemical assembly of organic molecules on silicon, or other conducting or semiconducting substrates, using iodonium salt precursors. Iodonium molecules do not assemble on conducting surfaces without a negative bias. Accordingly, the iodonium salts are preferred for patterning applications that rely on direct writing with negative bias. The stability of the iodonium molecule to acidic conditions allows them to be used with standard silicon processing. As a directed assembly process, the use of iodonium salts provides for small features while maintaining the ability to work on a surface and create structures on a wafer level. Therefore, the process is amenable for mass production. Furthermore, the assembled monolayer (or multilayer) is chemically robust, allowing for subsequent chemical manipulations and the introduction of various molecular functionalities for various chemical and biological applications.

Inventors:
 [1];  [1];  [1]
  1. Albuquerque, NM
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
968986
Patent Number(s):
7550071
Application Number:
11/065,894
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Classifications (CPCs):
C - CHEMISTRY C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES C25D - PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS
C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
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

Dirk, Shawn M, Howell, Stephen W, and Wheeler, David R. Electrochemical assembly of organic molecules by the reduction of iodonium salts. United States: N. p., 2009. Web.
Dirk, Shawn M, Howell, Stephen W, & Wheeler, David R. Electrochemical assembly of organic molecules by the reduction of iodonium salts. United States.
Dirk, Shawn M, Howell, Stephen W, and Wheeler, David R. Tue . "Electrochemical assembly of organic molecules by the reduction of iodonium salts". United States. https://www.osti.gov/servlets/purl/968986.
@article{osti_968986,
title = {Electrochemical assembly of organic molecules by the reduction of iodonium salts},
author = {Dirk, Shawn M and Howell, Stephen W and Wheeler, David R},
abstractNote = {Methods are described for the electrochemical assembly of organic molecules on silicon, or other conducting or semiconducting substrates, using iodonium salt precursors. Iodonium molecules do not assemble on conducting surfaces without a negative bias. Accordingly, the iodonium salts are preferred for patterning applications that rely on direct writing with negative bias. The stability of the iodonium molecule to acidic conditions allows them to be used with standard silicon processing. As a directed assembly process, the use of iodonium salts provides for small features while maintaining the ability to work on a surface and create structures on a wafer level. Therefore, the process is amenable for mass production. Furthermore, the assembled monolayer (or multilayer) is chemically robust, allowing for subsequent chemical manipulations and the introduction of various molecular functionalities for various chemical and biological applications.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {6}
}

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