Tuning Electrical Properties of 2D Materials by Self‐Assembled Monolayers

2017 ◽  
Vol 5 (1) ◽  
pp. 1700316 ◽  
Author(s):  
Wi Hyoung Lee ◽  
Yeong Don Park
Keyword(s):  
Electrical Properties ◽  
2D Materials ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled

scholarly journals Conductance Switching of Azobenzene-Based Self-Assembled Monolayers on Cobalt Probed by UHV Conductive-AFM.

Nanoscale ◽  
2021 ◽  
Author(s):  
Louis Thomas ◽  
Imane Arbouch ◽  
David Guérin ◽  
Xavier Wallart ◽  
Colin van Dyck ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Covalent Bond ◽  
Molecular Junctions ◽  
Self Assembled Monolayers ◽  
Conductive Afm ◽  
Conductance Switching ◽  
Assembled Monolayers ◽  
Self Assembled

We report the formation of self-assembled monolayers of a molecular photoswitch (azobenzene-bithiophene derivative, AzBT) on cobalt via a thiol covalent bond. We study the electrical properties of the molecular junctions...

Electrical properties of end-group functionalised Self-Assembled Monolayers

1997 ◽  
Vol 36 (1-4) ◽  
pp. 119-122 ◽  
Author(s):  
J. Collet ◽  
M. Bonnier ◽  
O. Bouloussa ◽  
F. Rondelez ◽  
D. Vuillaume
Keyword(s):  
Electrical Properties ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
End Group

Self-Assembled Monolayers of Tetrathiafulvalene Derivatives on Au(111):  Organization and Electrical Properties†

2004 ◽  
Vol 108 (22) ◽  
pp. 7213-7218 ◽  
Author(s):  
Elba Gomar-Nadal ◽  
Ganesh K. Ramachandran ◽  
Fan Chen ◽  
Timothy Burgin ◽  
Concepció Rovira ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled

Determination of the Molecular Electrical Properties of Self-Assembled Monolayers of Compounds of Interest in Molecular Electronics

2001 ◽  
Vol 123 (10) ◽  
pp. 2454-2455 ◽  
Author(s):  
Fu-Ren F. Fan ◽  
Jiping Yang ◽  
Shawn M. Dirk ◽  
David W. Price ◽  
Dimitry Kosynkin ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Molecular Electronics ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled

Physical Characterization and Electrical Transport in End-Group Functionalized Self-Assembled Monolayers

1997 ◽  
Vol 488 ◽  
Author(s):  
J. Collet ◽  
D. Vuillaume ◽  
M. Bonnier ◽  
O. Bouloussa ◽  
F. Rondelez ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Electrical Transport ◽  
Native Oxide ◽  
Self Assembled Monolayers ◽  
Self Assembled Monolayer ◽  
Alkyl Chains ◽  
Covalently Bonded ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
End Group

AbstractWe have previously demonstrated that a self-assembled monolayer (SAM) of alkyltrichlorosilane molecules, covalently bonded to the native oxide of a silicon substrate, allows the fabrication of MIS (Metal-Insulator-Semiconductor) devices with excellent electrical properties [1]. Here we demonstrate that we can functionalize, with π-electron moieties, the end-groups of the molecules, once grafted to the substrate, without disturbing the low conductivity through the SAM (σ⊥), while strongly increasing the in-plane conductivity (σ//). The functionalization of the monolayer is monitored by FTIR, ellipsometry and X ray reflectivity. Conductivity, photoconductivity and capacitance measurements are carried out to study the effect of these chemical functionalizations on the electrical properties of the monolayers. We demonstrate that the low perpendicular conductivity (σ⊥≈10−15 S/cm) is not altered by the end-group functionalities while high anisotropic conductivities (σ///σ⊥ ≈ 107-108) are obtained at a monolayer level. Interfacial (Si/SAM and SAM/metal) energy barriers are investigated as a function of the end-group functionalities. We also show that conducting monomers substituted by alkyl chains (3,6- dibromocarbazole-N-octyltrimethoxysilane), directly grafted to the substrate, exhibit similar behavior.

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