scholarly journals The Rate of Charge Tunneling through Self-Assembled Monolayers Is Insensitive to Many Functional Group Substitutions

2012 ◽  
Vol 124 (19) ◽  
pp. 4736-4739 ◽  
Author(s):  
Hyo Jae Yoon ◽  
Nathan D. Shapiro ◽  
Kyeng Min Park ◽  
Martin M. Thuo ◽  
Siowling Soh ◽  
...  
Keyword(s):  
Functional Group ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Charge Tunneling

scholarly journals The Rate of Charge Tunneling through Self-Assembled Monolayers Is Insensitive to Many Functional Group Substitutions

2012 ◽  
Vol 51 (19) ◽  
pp. 4658-4661 ◽  
Author(s):  
Hyo Jae Yoon ◽  
Nathan D. Shapiro ◽  
Kyeng Min Park ◽  
Martin M. Thuo ◽  
Siowling Soh ◽  
...  
Keyword(s):  
Functional Group ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Charge Tunneling

scholarly journals Influence of the nature of the alkanethiol terminal group on the electrochemical stability and blocking ability of self-assembled nanofilms on Au electrode

2021 ◽  
Vol 340 ◽  
pp. 01013
Author(s):  
Svetlana Ovchinnikova ◽  
Tatyana Aleksandrova
Keyword(s):  
Functional Group ◽  
Energy State ◽  
Terminal Group ◽  
Electrochemical Stability ◽  
Self Assembled Monolayers ◽  
Oh Groups ◽  
End Groups ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Terminal Functional Group

We studied the effect of the nature of the terminal group of thiols with the same chain length HS (CH2)8 – R (R: -CH3, -CH2OH, -NH2) on the electrodesorption behaviour of well-formed SAMs (the self-assembled monolayers), their stability and blocking ability using voltammetry and chronoamperometry. The nature of the terminal functional group determines the surface properties of SAM and provides the basis for subsequent interactions (for example, with peptides, proteins, DNA) in order to create sensors and bioagents. For the studied thiols, the hydrophilicity of the end groups increases in the series -CH3<< -NH2 ≤ -CH2OH; they also differ in polarity and the possibility of protonation of the amino group. For thiols with -CH3 and -CH2OH groups, an increase in the hydrophilicity of the terminal group leads to the formation of less stable and less ordered films. The replacement of carbon by nitrogen with approximately the same hydrophilicity of the groups (-CH2OH and -NH2) leads to the formation of a more stable film consisting of molecules in the same energy state, butwith poorer insulatingproperties.

Binary aromatic self-assembled monolayers: electrostatic properties and charge tunneling rates across the molecular framework

2020 ◽  
Vol 22 (19) ◽  
pp. 10957-10967 ◽  
Author(s):  
Andika Asyuda ◽  
Xianglong Wan ◽  
Michael Zharnikov
Keyword(s):  
Work Function ◽  
Self Assembled Monolayers ◽  
Electrostatic Effects ◽  
Electrostatic Properties ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Charge Tunneling ◽  
Molecular Framework ◽  
Tunneling Rates

Mixing of non- and fluorine-substituted mercaptobiphenyls in binary monolayers not only leads to work function variation but also electrostatic effects in photoemission and tunable charge tunneling rates across the films.

Functional group selective STM Imaging in self-assembled monolayers: Benzeneselenol on Au(111)

2018 ◽  
Vol 427 ◽  
pp. 581-586 ◽  
Author(s):  
Waleed Azzam ◽  
Michael Zharnikov ◽  
Michael Rohwerde ◽  
Asif Bashir
Keyword(s):  
Functional Group ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled
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