Adsorption of short-chain alkanethiols on Ag(111) studied by direct recoiling spectroscopy

Rodríguez, Luis Ramón Ruiz; Gayone, J. E.; Sánchez, E. A.; Ascolani, H.; Grizzi, O.; Sánchez, Miguel; Blum, B.; Benítez, G.; Salvarezza, Roberto Carlos

doi:10.1016/j.susc.2006.03.024

Cited by 18 publications

(17 citation statements)

References 50 publications

(107 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In Figure , the affinity level of F – measured with respect to the vacuum level is approximately at E a = −3.399 eV. As the distance between the projectile of F and the surface decreases, the affinity level shifts downward through the image-potential effect and broadens, and crosses the Fermi level of the clean Cu(110) surface (work function W = 4.49 eV) approximately at 6.2 atomic unit, which enhances the resonant electron capture from the occupied metallic states. Departing from the surface, resonant ionization takes place when the affinity level is above the Fermi level.…”

Section: Resultsmentioning

confidence: 95%

“…The scattered Ar(S) and the recoiling H(DR), O(DR) particles are all recorded using a 16 mm-diameter MCP detector set at a distance of 1.41 m from the scattering center at the end of a TOF analysis tube. In the pulsed beam mode, the low incident Ar + current (about 10 –12 A) hitting the surface produces negligible damage to the adsorbed layer as has been amply demonstrated in the literature. − …”

Section: Methodsmentioning

confidence: 90%

See 1 more Smart Citation

Dissociation and Charge Transfer of H₂O on Cu(110) Probed in Real Time Using Ion Scattering Spectroscopy

Chen

Liu

et al. 2016

Langmuir

View full text Add to dashboard Cite

Water-Cu(110) interaction is of particular importance during the routine use of graphene-based devices. In this work, water adsorption, dissociation, and desorption at elevated temperatures have been well studied using the time-of-flight ion scattering technique. It is found that water adsorption meets the first-order Langmuir adsorption model at room temperature. The variation of the ratio between residual O and H on the surface with temperature has been well determined, which profoundly reveals the dynamical process of surface composition. Furthermore, the change in the surface electronic properties has been probed by measuring negative-ion fractions as a function of the annealing temperature for fast ion scattering. It suggests that charge transfer is a very sensitive method for studying specific electronic processes in real time.

show abstract

Section: Resultsmentioning

confidence: 95%

Section: Methodsmentioning

confidence: 90%

Dissociation and Charge Transfer of H₂O on Cu(110) Probed in Real Time Using Ion Scattering Spectroscopy

Chen

Liu

et al. 2016

Langmuir

View full text Add to dashboard Cite

show abstract

“…In this work, we study the adsorption kinetics of the EP-PTCDI molecules by means of TOF-DRS, a technique that has been proven to yield useful information for other organic molecules like alkanethiols on Ag, 25 where a more complex adsorption process, consisting on different adsorption stages, was found. Panel a of Fig.…”

Section: Resultsmentioning

confidence: 99%

“…During sputtering the sample was kept under continuous rotation around its normal in order to change the azimuthal incidence angle. 24,25 The quality of the surface was verified by TOF-DRS, given that the spectra taken 151 incidence and at more grazing angles (51) are very sensitive to surface cleanness and the atomic order.…”

Section: Methodsmentioning

confidence: 99%

Assembly and thermal stability of thin EP-PTCDI films on Ag(111)

Loli

Sánchez

Gayone

et al. 2009

Phys. Chem. Chem. Phys.

View full text Add to dashboard Cite

We report a multi-technique study of the adsorption kinetics and self-assembly characteristics of EP-PTCDI grown on Ag(111) at UHV conditions and room temperature. Changes in the valence band characteristics for the mono and the multilayer film and the stability as a function of the annealing temperature are discussed. The results show that the molecules start to adsorb on the step edges forming ordered islands that grow to fully cover a monolayer. Further exposure results in the stacking of similarly ordered islands of several layers. The desorption experiment shows that the film is stable up to 150 degrees C where a rapid desorption of the multilayer takes place, followed by a decomposition of the molecules for temperatures higher than 170 degrees C.

show abstract

“…In comparison to the backscattering geometry DRS has a lower mass resolution and a higher contribution from multiple scattering collisions. The advantages enumerated above have made of TOF-DRS an interesting technique to study adsorption phenomena, for atoms and in particular for organic molecules adsorbed at surfaces [6]. In this report we describe the instrument developed at the Surface Science Group in Bariloche which combines both back (ion scattering) and forward (direct recoil) spectroscopies with other techniques including Micro Channel Plate -Low Energy Electron Diffraction (MCP-LEED), Ultraviolet Photoelectron Spectroscopy (UPS), Auger (AES) and High Resolution Energy Loss Spectroscopy (EELS).…”

Section: -Introductionmentioning

confidence: 99%

Direct recoil spectroscopy of adsorbed atoms and self-assembled monolayers on Cu(001)

Alarcón

Jia

Carrera

et al. 2014

Vacuum

Self Cite

View full text Add to dashboard Cite

We present results of adsorption experiments of Sn and 1,4benzenedimethanethiol (BDMT) on Cu(001), which illustrate the capabilities of a new setup specifically designed to perform surface studies by Direct Recoil Spectroscopy (DRS). The system consists of three UHV chambers connected in series with a 1-100 keV ion accelerator. In the main UHV chamber the DRS technique is combined with other more standard techniques such as Auger and Energy Loss Electron Spectroscopy, and Low Energy Electron Diffraction. The capabilities of the instrument are exemplified by two adsorption studies on the (001) face of Cu. First we describe measurements for 0.5 monolayer of Sn adsorbed on Cu that are in agreement with the crystallographic symmetry (3√2‫)2√ݔ‬R45 o seen by LEED and the appearance of Cu vacancies along the [100] direction. Then we present a study of selfassembling of 1,4-benzenedimethanethiol (BDMT) on Cu(001) from the vapour phase. For this system we show that it is possible to form a standing-up phase at large exposures, of the order of 10 6 L, and discuss its stability with temperature. We also discuss a S enrichment effect induced during the first adsorption stages of BDMT.

show abstract

Adsorption of short-chain alkanethiols on Ag(111) studied by direct recoiling spectroscopy

Cited by 18 publications

References 50 publications

Dissociation and Charge Transfer of H₂O on Cu(110) Probed in Real Time Using Ion Scattering Spectroscopy

Dissociation and Charge Transfer of H₂O on Cu(110) Probed in Real Time Using Ion Scattering Spectroscopy

Assembly and thermal stability of thin EP-PTCDI films on Ag(111)

Direct recoil spectroscopy of adsorbed atoms and self-assembled monolayers on Cu(001)

Contact Info

Product

Resources

About

Adsorption of short-chain alkanethiols on Ag(111) studied by direct recoiling spectroscopy

Cited by 18 publications

References 50 publications

Dissociation and Charge Transfer of H2O on Cu(110) Probed in Real Time Using Ion Scattering Spectroscopy

Dissociation and Charge Transfer of H2O on Cu(110) Probed in Real Time Using Ion Scattering Spectroscopy

Assembly and thermal stability of thin EP-PTCDI films on Ag(111)

Direct recoil spectroscopy of adsorbed atoms and self-assembled monolayers on Cu(001)

Contact Info

Product

Resources

About

Dissociation and Charge Transfer of H₂O on Cu(110) Probed in Real Time Using Ion Scattering Spectroscopy

Dissociation and Charge Transfer of H₂O on Cu(110) Probed in Real Time Using Ion Scattering Spectroscopy