Comparative electrochemical study of new self-assembled monolayers of 2-{[(Z)-1-(3-furyl)methylidene]amino}-1-benzenethiol and 2-{[(2-sulfanylphenyl)imino]methyl}phenol for determination of dopamine in the presence of high concentration of ascorbic acid and uric acid

The Analyst ◽  
2011 ◽  
Vol 136 (9) ◽  
pp. 1979 ◽  
Author(s):  
Mohsen Behpour ◽  
Sayed Mehdi Ghoreishi ◽  
Ebrahim Honarmand ◽  
Masoud Salavati-Niasari
Keyword(s):  
Ascorbic Acid ◽  
Uric Acid ◽  
Electrochemical Study ◽  
Self Assembled Monolayers ◽  
High Concentration ◽  
Assembled Monolayers ◽  
Self Assembled

Revisiting the determination of full steady-state coverage of redox centers on self-assembled monolayers

2012 ◽  
Vol 16 (1) ◽  
pp. 6-9 ◽  
Author(s):  
Olivier Alévêque ◽  
Pierre-Yves Blanchard ◽  
Tony Breton ◽  
Marylène Dias ◽  
Christelle Gautier ◽  
...  
Keyword(s):  
Steady State ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Redox Centers

scholarly journals Mobility of charge carriers in self-assembled monolayers

2019 ◽  
Vol 10 ◽  
pp. 2449-2458
Author(s):  
Zhihua Fu ◽  
Tatjana Ladnorg ◽  
Hartmut Gliemann ◽  
Alexander Welle ◽  
Asif Bashir ◽  
...  
Keyword(s):  
Charge Transport ◽  
Charge Carrier Mobility ◽  
Charge Carriers ◽  
Self Assembled Monolayers ◽  
Force Microscopy ◽  
Atomic Force ◽  
Mobility Of Charge Carriers ◽  
Assembled Monolayers ◽  
Self Assembled

We present a new approach to study charge transport within 2D layers of organic semi-conductors (OSCs) using atomic force microscopy (AFM)-based lithography applied to self-assembled monolayers (SAMs), fabricated from appropriate organothiols. The extent of lateral charge transport was investigated by insulating pre-defined patches within OSC-based SAMs with regions of insulating SAM made from large band gap alkanethiolates. The new method is demonstrated using a phenyl-linked anthracenethiolate (PAT), 4-(anthracene-2-ylethynyl)benzyl thiolate. I–V characteristics of differently shaped PAT-islands were measured using the AFM tip as a top electrode. We were able to determine a relationship between island size and electrical conductivity, and from this dependence, we could obtain information on the lateral charge transport and charge carrier mobility within the thin OSC layers. Our study demonstrates that AFM nanografting of appropriately functionalized OSC molecules provides a suitable method to determine intrinsic mobilities of charge carriers in OSC thin films. In particular, this method is rather insensitive with regard to influence of grain boundaries and other defects, which hamper the application of conventional methods for the determination of mobilities in macroscopic samples.

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