Self-assembled monolayer and method of making
Abstract
According to the present invention, the previously known functional material having a self-assembled monolayer on a substrate has a plurality of assembly molecules each with an assembly atom with a plurality of bonding sites (four sites when silicon is the assembly molecule) wherein a bonding fraction (or fraction) of fully bonded assembly atoms (the plurality of bonding sites bonded to an oxygen atom) has a maximum when made by liquid solution deposition, for example a maximum of 40% when silicon is the assembly molecule, and maximum surface density of assembly molecules was 5 silanes per square nanometer. Note that bonding fraction and surface population are independent parameters. The method of the present invention is an improvement to the known method for making a siloxane layer on a substrate, wherein instead of a liquid phase solution chemistry, the improvement is a supercritical phase chemistry. The present invention has the advantages of greater fraction of oxygen bonds, greater surface density of assembly molecules and reduced time for reaction of about 5 minutes to about 24 hours.
- Inventors:
-
- Kennewick, WA
- Richland, WA
- West Richland, WA
- Issue Date:
- Research Org.:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 875098
- Patent Number(s):
- 6531224
- Assignee:
- Battelle Memorial Institute (Richland, WA)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
- DOE Contract Number:
- AC06-76RL01830
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- self-assembled; monolayer; method; previously; functional; material; substrate; plurality; assembly; molecules; atom; bonding; sites; silicon; molecule; fraction; bonded; atoms; oxygen; maximum; liquid; solution; deposition; example; 40; surface; density; silanes; square; nanometer; note; population; independent; parameters; improvement; siloxane; layer; phase; chemistry; supercritical; advantages; bonds; reduced; time; reaction; minutes; 24; hours; liquid phase; liquid solution; self-assembled monolayer; /428/
Citation Formats
Fryxell, Glen E, Zemanian, Thomas S, Liu, Jun, and Shin, Yongsoon. Self-assembled monolayer and method of making. United States: N. p., 2003.
Web.
Fryxell, Glen E, Zemanian, Thomas S, Liu, Jun, & Shin, Yongsoon. Self-assembled monolayer and method of making. United States.
Fryxell, Glen E, Zemanian, Thomas S, Liu, Jun, and Shin, Yongsoon. Tue .
"Self-assembled monolayer and method of making". United States. https://www.osti.gov/servlets/purl/875098.
@article{osti_875098,
title = {Self-assembled monolayer and method of making},
author = {Fryxell, Glen E and Zemanian, Thomas S and Liu, Jun and Shin, Yongsoon},
abstractNote = {According to the present invention, the previously known functional material having a self-assembled monolayer on a substrate has a plurality of assembly molecules each with an assembly atom with a plurality of bonding sites (four sites when silicon is the assembly molecule) wherein a bonding fraction (or fraction) of fully bonded assembly atoms (the plurality of bonding sites bonded to an oxygen atom) has a maximum when made by liquid solution deposition, for example a maximum of 40% when silicon is the assembly molecule, and maximum surface density of assembly molecules was 5 silanes per square nanometer. Note that bonding fraction and surface population are independent parameters. The method of the present invention is an improvement to the known method for making a siloxane layer on a substrate, wherein instead of a liquid phase solution chemistry, the improvement is a supercritical phase chemistry. The present invention has the advantages of greater fraction of oxygen bonds, greater surface density of assembly molecules and reduced time for reaction of about 5 minutes to about 24 hours.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 11 00:00:00 EST 2003},
month = {Tue Mar 11 00:00:00 EST 2003}
}
Works referenced in this record:
Hybrid Mesoporous Materials with Functionalized Monolayers
journal, January 1998
- Liu, Jun; Feng, Xiangdong; Fryxell, Glen E.
- Advanced Materials, Vol. 10, Issue 2, p. 161-165
Functionalized Monolayers on Ordered Mesoporous Supports
journal, May 1997
- Feng, X.; Fryxell, G. E.; Wang, L. -Q.
- Science, Vol. 276, Issue 5314