Physics
SAMs
Self-assembled monolayers of alkanethiols on Au(111)
Self-assembly of 1,4-benzenedimethanethiol self-assembled monolayers on gold.
Langmuir : the ACS journal of surfaces and colloids
Volume: 26 , Issue: 10 , Page: 7242-7
A study of the self-assembly of 1,4-benzenedimethanethiol (BDMT; HS-CH(2)-(C(6)H(4))-CH(2)-SH) monolayers on gold is presented. Self-assembled monolayers (SAMs) are characterized by reflection-absorption infrared spectroscopy (RAIRS), X-ray…
Filed in Surface and Interface Physics (Physics)
Formation of 1,8-Octanedithiol Mono- and Bilayers under Electrochemical Control
The Journal of Physical Chemistry C
Volume: 114 , Issue: 8 , Page: 3568-3574
We present results of the formation of 1,8-octanedithiol (ODT) monolayers on the Au(111) single-crystal surfaces by oxidative deposition from alkaline solutions under electrochemical control. Cyclic voltammetry shows the presence of two…
Filed in Surface and Interface Physics (Physics)
Observation of molecular orbital gating.
Nature
Volume: 462 , Issue: 7276 , Page: 1039-43
The control of charge transport in an active electronic device depends intimately on the modulation of the internal charge density by an external node. For example, a field-effect transistor relies on the gated electrostatic modulation of the…
Filed in Surface and Interface Physics (Physics)
Molecular Self-Assembly at Bare Semiconductor Surfaces: Cooperative Substrate-Molecule Effects in Octadecanethiolate Monolayer Assemblies on GaAs(111), (110), and (100).
ACS nano
The structures of self-assembled monolayers formed by chemisorption of octadecanethiol onto the surfaces of GaAs(001), (110), (111-A)-Ga, and (111-B)-As have been characterized in detail by a combination of X-ray photoelectron, near-edge X-ray…
Filed in Surface and Interface Physics (Physics)
Chemical Analysis of the Superatom Model for Sulfur-Stabilized Gold Nanoparticles.
Journal of the American Chemical Society
Volume: 132 , Issue: 24 , Page: 8378-8384
The superatom model for nanoparticle structure is shown to be inadequate for the prediction of the thermodynamic stability of gold nanoparticles. The observed large HOMO-LUMO gaps for stable nanoparticles predicted by this model are, for…
Filed in Surface and Interface Physics (Physics)
Characterization of alkanethiol self-assembled monolayers on gold by thermal desorption spectroscopy.
Langmuir : the ACS journal of surfaces and colloids
Volume: 26 , Issue: 12 , Page: 9659-65
SAM formation of undecanethiol (UDT) and mercaptoundecanoic acid (11-MUA) on Au(111) and on gold foils, using wet chemical preparation methods as well as physical vapor deposition (PVD) in UHV, has been studied by means of thermal desorption…
Filed in Surface and Interface Physics (Physics)
STM Study of Molecule Double-Rows in Mixed Self-Assembled Monolayers of Alkanethiols
Langmuir
Volume: 26 , Issue: 11 , Page: 100331113020027
Using scanning tunnelling microscopy (STM), we have studied mixed self-assembled monolayers of linear alkanethiol molecules. Nonanedithiol (C9S2), nonanethiol (C9S), decanethiol (C10S), and dodecanethiol (C12S) were inserted into a self-assembled…
Filed in Surface and Interface Physics (Physics)
Atom probe microscopy of self-assembled monolayers: preliminary results.
Langmuir : the ACS journal of surfaces and colloids
Volume: 26 , Issue: 8 , Page: 5291-4
We have achieved three-dimensional imaging of decanethiol self-assembled monolayers (SAMs) on metal surfaces by atom probe tomography (APT). The present Letter provides preliminary results on Ni [001] and Au [111], shows the analytical potential…
Filed in Surface and Interface Physics (Physics)
On the thermodynamic stability of alpha,omega-alkanedithiols self-assembled monolayers on unreconstructed and reconstructed Au(111).
Langmuir : the ACS journal of surfaces and colloids
Volume: 26 , Issue: 12 , Page: 9589-95
A comparative study on the thermodynamic stability of the lying down (LD) and standing up (SU) phases of alpha,omega-butanedithiol (BDT) on unreconstructed (U) and on reconstructed (R) Au(111) surfaces is presented. The R surface is made of…
Filed in Surface and Interface Physics (Physics)
Atomic scale imaging of alkanethiolate monolayers at gold surfaces with atomic force microscopy
J. Am. Chem. Soc.
Volume: 114 , Issue: 4 , Page: 1222-1227
Filed in Surface and Interface Physics (Physics)
Deriving the complete molecular conformation of self-assembled alkanethiol molecules from sum-frequency generation vibrational spectra
Physical Review B
Volume: 79 , Issue: 12 , Page: 1-12
Filed in Surface and Interface Physics (Physics)
Structural investigation of Au(111)/butylthiolate adsorption phases.
Physical chemistry chemical physics : PCCP
Volume: 12 , Issue: 13 , Page: 3229-38
The structures of the high-coverage ('standing-up') and low-coverage ('lying-down') phases of butylthiolate on Au(111) have been investigated by a range of experimental methods. Normal incidence X-ray standing waves,…
Filed in Surface and Interface Physics (Physics)
Adsorption and diffusion of SCH3 radicals and Au(SCH3)2 complexes on the unreconstructed Au(111) surface in the submonolayer coverage regime
Physical Review B
Volume: 79 , Issue: 23 , Page: 44-46
Filed in Surface and Interface Physics (Physics)
The local adsorption structure of methylthiolate and butylthiolate on Au(111): A photoemission core-level shift investigation
Surface Science
Volume: 604 , Issue: 2 , Page: 227-234
Filed in Surface and Interface Physics (Physics)
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Self-assembled monolayers of thiols and dithiols on gold: new challenges for a well-known system.
Chemical Society reviews
Volume: 39 , Issue: 5 , Page: 1805-34
Self-assembled monolayers (SAMs) of alkanethiols and dialkanethiols on gold are key elements for building many systems and devices with applications in the wide field of nanotechnology. Despite the progress made in the knowledge of these…
Filed in Surface and Interface Physics (Physics)
Adsorption site determination for Au-octanethiolate on Au(111).
Langmuir : the ACS journal of surfaces and colloids
Volume: 26 , Issue: 12 , Page: 9484-90
Self-assembled monolayers (SAMs) of Au-octanethiolate on Au(111) have been studied using scanning tunneling microscopy (STM). Thermal annealing of the dense (square root(3) x square root(3))R30 degrees layer at 353 K for 1 h leads to the formation…
Filed in Surface and Interface Physics (Physics)
Decomposition of Methylthiolate Monolayers on Au(111) Prepared from Dimethyl Disulfide in Solution Phase
The Journal of Physical Chemistry C
Volume: 114 , Issue: 22 , Page: 10183-10194
We investigated the formation and stability of layers of methylthiolate prepared on the Au(111) surface by the method of immersion in an ethanolic solution of dimethyl disulfide (DMDS). The surface species were characterized by electrochemical…
Filed in Surface and Interface Physics (Physics)
Self-assembly of alkanedithiols on Au(111) from solution: effect of chain length and self-assembly conditions.
Langmuir
Volume: 25 , Issue: 22 , Page: 12945-53
A comparative study on the adsorption of buthanedithiol (BDT), hexanedithiol (HDT), and nonanedithiol (NDT) on Au(111) from ethanolic and n-hexane solutions and two different preparation procedures is presented. SAM characterization is based on…
Filed in Surface and Interface Physics (Physics)
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Determination of the surface structures of the GaAs(001)-(2x4) As-rich phase
Phys. Rev. B
Volume: 51 , Issue: 7 , Page: 4200
Filed in Surface and Interface Physics (Physics)
Epitaxial quality of thin Ag lms on GaAs(100) surfaces cleaned with various wet etching techniques
Applied Physics Letters
Volume: 68 , Issue: 100 , Page: 681-683
Filed in Surface and Interface Physics (Physics)
