Three-Dimensional Self-Assembled Monolayer (3D SAM) ofn-Alkanethiols on Copper Nanoclusters

T. P. Ang; T. S. A. Wee; W. S. Chin

doi:10.1021/jp049006r

Inhibition Effect of Three-Dimensional (3D) Nanostructures on the Corrosion Resistance of 1-Dodecanethiol Self-Assembled Monolayer on Copper in NaCl Solution

Materials ◽

10.3390/ma11071225 ◽

2018 ◽

Vol 11 (7) ◽

pp. 1225 ◽

Cited By ~ 5

Author(s):

Shuai Hu ◽

Zhenyu Chen ◽

Xingpeng Guo

Keyword(s):

Corrosion Resistance ◽

Three Dimensional ◽

Copper Surface ◽

Nacl Solution ◽

Self Assembled Monolayer ◽

Simple Method ◽

Self Assembled ◽

Bare Copper ◽

3D Nanostructure ◽

Anticorrosion Properties

A novel and simple method to improve the corrosion resistance of copper by constructing a three-dimensional (3D) 1-dodecanethiol self-assembled monolayer (SAM) in 3.5% NaCl solution is reported in this study. Several drops of 1% H3PO4 solution are thinly and uniformly distributed on copper surface to form a 3D nanostructure constituted by Cu3(PO4)2 nanoflowers. The anticorrosion properties of 1-dodecanethiol SAM on copper surface and on copper surface that is treated with H3PO4 solution were evaluated. Results demonstrated that 1-dodecanethiol SAM on bare copper surface exhibits good protection capacity, whereas a copper surface that is pretreated with H3PO4 solution can substantially enhance the corrosion resistance of 1-dodecanethiol SAM.

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TOF-SIMS surface analysis of L-Tryptophan self assembled monolayer

Open Chemistry ◽

10.2478/s11532-014-0515-5 ◽

2014 ◽

Vol 12 (5) ◽

pp. 568-576

Author(s):

Marian Petrovic ◽

Ivan Talian ◽

Lenka Skantarova ◽

Andrej Orinak ◽

Dusan Velic

Keyword(s):

Surface Analysis ◽

Three Dimensional ◽

Chemical Properties ◽

Dimensional Structure ◽

Mercaptoacetic Acid ◽

Self Assembled Monolayer ◽

Silver Nanostructure ◽

Tof Sims ◽

Self Assembled

AbstractThis paper dealt with the preparation and characterization of self — assembled monolayersSAM-s of 1-hexadecanethiole and mercapto acetic acid on the silver nanostructure and subsequently the immobilization with amino acid L-Tryptophane. In order to achieve it, we used the electrodeposition of silver onto nanostructured surface of paraffin impregnated graphite electrode (PIGE). Subsequently, we assembled SAM by choosing the 1-hexadecanethiole and mercaptoacetic acid. These two kinds of SAM underwent the functionalization by L-Tryptophan. The observations of silver on PIGE surfaces were performed by scanning electron microscope (SEM). For surface analysis of the SAM functionalized by L-tryphophan, the TOF-SIMS technique was chosen. Finally, the fragmented ions of the immobilized-L-Tryptophan SAM were determined on the basis of suggested residues and three-dimensional structure. The residues show that the ability of L-Tryptophan to build homogeneous structure is better by mercaptoacetic acid SAM structure than by 1-hexadecanethiol. It was observed that L-Tryptophan built compact surface, which, due its chemical properties, can represent very interesting side regarding biocompatibility, homochirality and robustness in the area of life science.

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Ambient Copper-Copper Thermocompression Bonding using Self Assembled Monolayers

MRS Proceedings ◽

10.1557/proc-1112-e02-03 ◽

2008 ◽

Vol 1112 ◽

Cited By ~ 1

Author(s):

Xiaofang Ang ◽

Jun Wei ◽

Zhong Chen ◽

Chee Cheong Wong

Keyword(s):

Bonding Temperature ◽

Three Dimensional ◽

Copper Surface ◽

Physical Contact ◽

Ambient Conditions ◽

Thermal Dependence ◽

Self Assembled Monolayer ◽

Assembled Monolayers ◽

Thermocompression Bonding ◽

Self Assembled

AbstractA typical copper-copper thermocompression bonding process is carried out in an ultrahigh vacuum (UHV) or inert environment at a bonding temperature >300°C. The ultraclean environment serves a single purpose – to maintain oxide-free copper surfaces, allowing intimate physical contact between copper atoms. This study investigates the temperature dependence of direct copper bonding from room temperature to 300°C under ambient condition. An anomalous thermal dependence of bond strength occurs between 80°C to 140°C where an increase in bonding temperature within this regime is in fact, detrimental to joint strength. This is interpreted as a thermal competition between oxidation and bond formation. This study also demonstrates that by simply coating the copper surface with a self assembled monolayer of 1-undecanethiol prior to bonding, Cu joints can be successfully formed at close to ambient temperature without a vacuum, yielding joint shear strengths on the order of 70MPa. The densely packed monolayer serves to passivate the copper surface against oxidation under ambient conditions. The ultrathin organic monolayer structure, as compared to a bulk oxide layer, could be easily displaced during the mechanical deformation at the bonding interface which accompanies thermocompression. This method could be an effective simple bonding solution for three-dimensional integrated chips.

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Improved Sensitivity and Durability of Poly(3-hexylthiophene) based Polymeric Photodetectors using Indium-tin-oxide Modified by Phosphonic Acid-based Self-assembled Monolayer Treatment

IEEJ Transactions on Electronics Information and Systems ◽

10.1541/ieejeiss.135.168 ◽

2015 ◽

Vol 135 (2) ◽

pp. 168-173 ◽

Cited By ~ 2

Author(s):

Hirotake Kajii ◽

Yusuke Sato ◽

Taichiro Morimune ◽

Yutaka Ohmori

Keyword(s):

Tin Oxide ◽

Phosphonic Acid ◽

Indium Tin Oxide ◽

Self Assembled Monolayer ◽

Self Assembled

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Nanoscale Self-Assembly Using Ion and Electron Beam Techniques: A Rapid Review

MRS Advances ◽

10.1557/adv.2020.349 ◽

2020 ◽

Vol 5 (64) ◽

pp. 3507-3520

Author(s):

Chunhui Dai ◽

Kriti Agarwal ◽

Jeong-Hyun Cho

Keyword(s):

Electron Beam ◽

Self Assembly ◽

Ion Beam ◽

Three Dimensional ◽

The Self ◽

Stress Generation ◽

Rapid Review ◽

High Yield ◽

3D Nanostructures ◽

Self Assembled

AbstractNanoscale self-assembly, as a technique to transform two-dimensional (2D) planar patterns into three-dimensional (3D) nanoscale architectures, has achieved tremendous success in the past decade. However, an assembly process at nanoscale is easily affected by small unavoidable variations in sample conditions and reaction environment, resulting in a low yield. Recently, in-situ monitored self-assembly based on ion and electron irradiation has stood out as a promising candidate to overcome this limitation. The usage of ion and electron beam allows stress generation and real-time observation simultaneously, which significantly enhances the controllability of self-assembly. This enables the realization of various complex 3D nanostructures with a high yield. The additional dimension of the self-assembled 3D nanostructures opens the possibility to explore novel properties that cannot be demonstrated in 2D planar patterns. Here, we present a rapid review on the recent achievements and challenges in nanoscale self-assembly using electron and ion beam techniques, followed by a discussion of the novel optical properties achieved in the self-assembled 3D nanostructures.

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Self-Assembled Fluid Phase Floating Membranes with Tuneable Water Interlayers

10.26434/chemrxiv.8307419 ◽

2019 ◽

Author(s):

Luke Clifton ◽

Nicoló Paracini ◽

Arwel V. Hughes ◽

Jeremy H. Lakey ◽

Nina-Juliane Seinke ◽

...

Keyword(s):

Fluid Phase ◽

Interlayer Thickness ◽

Supported Bilayers ◽

Self Assembled Monolayer ◽

High Coverage ◽

Nano Technology ◽

Surface Distance ◽

Potential Applications ◽

Self Assembled ◽

Coated Surfaces

<p>We present a reliable method for the fabrication of fluid phase unsaturated bilayers which are readily self-assembled on charged self-assembled monolayer (SAM) surfaces producing high coverage floating supported bilayers where the membrane to surface distance could be controlled with nanometer precision. Vesicle fusion was used to deposit the bilayers onto anionic SAM coated surfaces. Upon assembly the bilayer to SAM solution interlayer thickness was 7-10 Å with evidence suggesting that this layer was present due to SAM hydration repulsion of the bilayer from the surface. This distance could be increased using low concentrations of salts which caused the interlayer thickness to enlarge to ~33 Å. Reducing the salt concentration resulted in a return to a shorter bilayer to surface distance. These accessible and controllable membrane models are well suited to a range of potential applications in biophysical studies, bio-sensors and Nano-technology.</p><br>

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