Orthogonal Functionalization of Silicon Substrates Using Self-Assembled Monolayers

Langmuir ◽  
2010 ◽  
Vol 26 (11) ◽  
pp. 8358-8365 ◽  
Author(s):  
Nicole Herzer ◽  
Claudia Haensch ◽  
Stephanie Hoeppener ◽  
Ulrich S. Schubert
Keyword(s):  
Self Assembled Monolayers ◽  
Silicon Substrates ◽  
Assembled Monolayers ◽  
Self Assembled

Preparation and Tribological Property of Novel Self-Assembled Composite Films on Silicon

2014 ◽  
Vol 936 ◽  
pp. 1066-1070
Author(s):  
Shu Hua Teng ◽  
He Pan
Keyword(s):  
Composite Films ◽  
Single Crystal Silicon ◽  
Self Assembled Monolayers ◽  
Optimal Time ◽  
Silicon Substrates ◽  
Crystal Silicon ◽  
Wear Life ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Aldehyde Groups

Self-assembled composite films of APTES-GA-APTES were successfully prepared on single-crystal silicon substrates through the cross-linking reaction between glutaraldehyde (GA) and two layers of 3-aminopropyltriethoxysilane (APTES). The optimal time to deposit the GA layer on the APTES monolayer was 3 h, during which most amino groups of APTES reacted with the aldehyde groups of GA to form smooth and uniform APTES-GA composite films. The further deposition of another APTES layer led to the generation of three-layer APTES-GA-APTES composite films. Compared to the APTES self-assembled monolayers, the three-layer films displayed a similar surface morphology but a reduced friction coefficient from 0.23 to 0.15 and an extended wear life from 50 s to 820 s due to the introduction of GA.

Self-assembled monolayers of perfluoroalkylsilane on plasma-hydroxylated silicon substrates

2015 ◽  
Vol 349 ◽  
pp. 683-694 ◽  
Author(s):  
Lin Wu ◽  
Lu Cai ◽  
Anqi Liu ◽  
Wei Wang ◽  
Yanhua Yuan ◽  
...  
Keyword(s):  
Self Assembled Monolayers ◽  
Silicon Substrates ◽  
Assembled Monolayers ◽  
Self Assembled

Nanotribological characterization of perfluoroalkylphosphonate self-assembled monolayers deposited on aluminum-coated silicon substrates

2006 ◽  
Vol 12 (6) ◽  
pp. 588-596 ◽  
Author(s):  
Bharat Bhushan ◽  
Michal Cichomski ◽  
Enamul Hoque ◽  
James A. DeRose ◽  
Patrik Hoffmann ◽  
...  
Keyword(s):  
Self Assembled Monolayers ◽  
Silicon Substrates ◽  
Assembled Monolayers ◽  
Self Assembled

Regulation of the Surface Potential of Silicon Substrates in Micrometer Scale with Organosilane Self-Assembled Monolayers

Langmuir ◽  
2002 ◽  
Vol 18 (20) ◽  
pp. 7469-7472 ◽  
Author(s):  
Kazuyuki Hayashi ◽  
Nagahiro Saito ◽  
Hiroyuki Sugimura ◽  
Osamu Takai ◽  
Nobuyuki Nakagiri
Keyword(s):  
Surface Potential ◽  
Self Assembled Monolayers ◽  
Silicon Substrates ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Micrometer Scale

Self-Assembled Monolayers of Thiophenol on Gold as a Novel Substrate for Surface-Enhanced Infrared Absorption

2000 ◽  
Vol 54 (3) ◽  
pp. 366-370 ◽  
Author(s):  
John A. Seelenbinder ◽  
Chris W. Brown ◽  
Daniel W. Urish
Keyword(s):  
Infrared Absorption ◽  
The Self ◽  
Self Assembled Monolayers ◽  
Silicon Substrates ◽  
Self Assembled Monolayer ◽  
Surface Enhanced ◽  
Assembled Monolayers ◽  
Intensity Changes ◽  
Unique Method ◽  
Self Assembled

A unique method of obtaining surface-enhanced infrared absorption (SEIRA) spectra for chemicals that will not chemically attach to a metal surface has been investigated. Surface enhancements are greatest for molecules that bind to metals. In order to achieve greater enhancement for those analytes that do not bind to SEIRA metals, we have investigated self-assembled monolayers as a means of linking analytes to a gold substrate. Monolayers of thiophenol were formed onto sputter-coated gold–silicon substrates. Analytes were deposited onto the thiophenol-coated gold–silicon wafers, and external reflection SEIRA spectra were then measured. Enhancement factors as high as 30-fold compared to those for conventional SEIRA substrates are demonstrated. The self-assembled monolayers on gold substrates are shown to change both relative intensities and band positions of the adsorbed analyte. These intensity changes and frequency shifts show strong interaction of selected analytes with the self-assembled monolayer. This study of phthalates and nitrosubstituted aromatic compounds demonstrates the usefulness of the technique. Spectral changes evident through the use of the thiophenol monolayer are discussed.

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