Gold−Sulfur Bonding in 2D and 3D Self-Assembled Monolayers:  XPS Characterization

2000 ◽  
Vol 104 (28) ◽  
pp. 6562-6567 ◽  
Author(s):  
Marie-Caroline Bourg ◽  
Antonella Badia ◽  
R. Bruce Lennox
Keyword(s):  
Self Assembled Monolayers ◽  
Xps Characterization ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
2D And 3D

XPS Characterization of Porphyrin Based Self-Assembled Monolayers on Gold

2012 ◽  
Vol 548 ◽  
pp. 234-238
Author(s):  
Guang Yan Liu ◽  
Wen Cai Wang
Keyword(s):  
Photoelectron Spectroscopy ◽  
Electronic Device ◽  
Internal Standard ◽  
Binding Energies ◽  
Self Assembled Monolayers ◽  
Xps Characterization ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Cv Measurements

XPS characterization of self-assembled monolayers (SAMs) of tetraphenylporphyrin bearing a rigid tripodal linker by chemisorption of the thiol-derivatized terminal groups on gold substrate is described. The surface structure of the SAMs bearing tripodal linker were analyzed by X-ray photoelectron spectroscopy (XPS), and electrochemical cyclic voltammetry (CV) measurements. XPS confirms the formation of porphyrin SAMs on Au surface and identified bonding configurations of porphyrin molecules in the chemisorption of SAMs. The film thickness values (36 Å) obtained by XPS agree well with the estimated value by assuming the vertical orientation of the molecules on the gold surface. Using the Au4f7/2 as an internal standard, a lower binding energies shift (1.8 eV) of S2p in the SAMs reveals that the porphyrins were chemisorbed onto the surface via sulfurgold bonds. Electrochemical CV measurements suggest near monolayer coverage of the tripodal porphyrins with good stability of the redox SAMs, which have promising application in the development of molecular based electronic device and memory architectures.

Electrochemical behavior of self-assembled monolayers based on functionalized oligothiophenes

1998 ◽  
Vol 95 (6) ◽  
pp. 1339-1342 ◽  
Author(s):  
R. Michalitsch ◽  
A. El Kassmi ◽  
P. Lang ◽  
A. Yassar ◽  
F. Garnier
Keyword(s):  
Electrochemical Behavior ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled

Imaging of patterned self-assembled monolayers by scanning photoelectron microscopy

2003 ◽  
Vol 104 ◽  
pp. 459-462 ◽  
Author(s):  
R. Klauser ◽  
M. Zharnikov ◽  
I.-H. Hong ◽  
S.-C. Wang ◽  
A. Gölzhäuser ◽  
...  
Keyword(s):  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Scanning Photoelectron Microscopy ◽  
Self Assembled

Self-assembled Monolayers Preparation and Characterization of BiFeO3 Thin Films

2009 ◽  
Vol 25 (1) ◽  
pp. 83-86 ◽  
Author(s):  
Guo-Qiang TAN ◽  
Hai-Yang BO ◽  
Hong-Yan MIAO ◽  
Ao XIA ◽  
Zhong-Liang HE
Keyword(s):  
Thin Films ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled
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