scholarly journals Surface passivation of (100) GaSb using self-assembled monolayers of long-chain octadecanethiol

AIP Advances ◽  
2016 ◽  
Vol 6 (5) ◽  
pp. 055206 ◽  
Author(s):  
E. Papis-Polakowska ◽  
J. Kaniewski ◽  
J. Jurenczyk ◽  
A. Jasik ◽  
K. Czuba ◽  
...  
Keyword(s):  
Surface Passivation ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Long Chain

scholarly journals Kinetic Isotope Effect on Electron Transfer Rates Across Self-Assembled Monolayers: A Case for Quantum Effects

2019 ◽  
Author(s):  
Samir Chattopadhyay ◽  
Sabyasanchi Bandyopadhyay ◽  
Abhishek Dey
Keyword(s):  
Cyclic Voltammetry ◽  
Kinetic Isotope Effect ◽  
Substantial Contribution ◽  
Self Assembled Monolayers ◽  
Transfer Rates ◽  
Medium Chain Length ◽  
Kinetic Isotope ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Long Chain

Long range ET across several self-assembled mon-olayer (SAM) covered Au electrodes is investigated using protonated and deuterated thiols (RSH/RSD). The rate of tunneling is measured using both chronoamperometry and cyclic voltammetry and it shows a prominent KIE. The KIE is ~2 (normal) for medium chain length thiols where the Tafel plot indicate substantial through space tunneling and is ~0.25 (inverse) for long chain thiols where the Tafel plot indicate mostly through bond tunneling. These results imply substantial contribution from the classical modes at the Au-(H)SR interface, which shift substantially on deuteration of the thiols, to the ET process.<br>

scholarly journals Synthesis of fluorescent long-chain thiols/disulfides as building-blocks for self-assembled monolayers preparation

2012 ◽  
Vol 10 (2) ◽  
pp. 295-299 ◽  
Author(s):  
Sushilkumar Jadhav
Keyword(s):  
Hydrogen Sulfide ◽  
Nitrogen Heterocycles ◽  
Building Blocks ◽  
Self Assembled Monolayers ◽  
Sodium Hydrogen ◽  
End Groups ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Symmetrical Disulfides ◽  
Long Chain

AbstractNew symmetrical disulfides together with the corresponding thiols bearing fluorescent end-groups have been synthesized as building-blocks for self-assembled monolayers (SAMs). The synthesis has been accomplished starting from aromatic nitrogen heterocycles in three steps. The conversion of the tosylated intermediate into the final disulfide is accomplished by use of sodium hydrogen sulfide (NaSH). Both products (thiols and disulfides) were isolated and characterized.

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