Growth of Ag nanostructures on TiO2(110)

Canário, A.R.; Sánchez, Esteban; Bandurin, Yu.; Esaulov, Vladimir A.

doi:10.1016/j.susc.2003.10.036

Cited by 26 publications

(16 citation statements)

References 22 publications

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“…In recent past, electron transfer between various atomic species with surface containing nanosystems has become a topic of particular interest. Instances include probing effects of the nanosystem's size and shape to determine their electronic structures [14].…”

Section: Introductionmentioning

confidence: 99%

Ion survival in grazing collisions of H− with vicinal nanosurfaces as a probe for subband electronic structures

et al. 2018

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We study the electron dynamics at a monocrystalline Pd(111) surface with stepped vicinal nanostructures modeled in a simple Kronig-Penney scheme. The unoccupied bands of the surface are resonantly excited via the resonant charge transfer (RCT) interaction of the surface with a hydrogen anion reflected at grazing angles. The interaction dynamics is simulated numerically in a quantum mechanical wave packet propagation approach. Visualization of the wave packet density shows that, when the electron is transferred to the metal, the surface and image subband states are the most likely locations of the electron as it evolves through the superlattice. The survival probability of the interacting ion exhibits strong modulations as a function of the vicinal-terrace size and shows peaks at those energies that access the image state subband dispersions. A simple square well model producing standing waves between the steps on the surface suggests the application of such ion-scattering at shallow angles to map electronic substructures in vicinal surfaces. The work also serves as the first proof-of-principle in the utility of our computational method to address, via RCT, surfaces with nanometric patterns.

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Section: Introductionmentioning

confidence: 99%

Ion survival in grazing collisions of H− with vicinal nanosurfaces as a probe for subband electronic structures

et al. 2018

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“…Since bacterial infections associated with titanium implants remain a major cause of their failure [37], considerable interest has arisen in the preparation and study of the properties (both physical-chemical and antibacterial) of Ti/TiO 2 surfaces modified with silver [38][39][40][41]. Several strategies have been used for their preparation, including the complexation of Ag + ions with mercaptan-terminated phosphonates [41], silver sputtering [38], adsorption of nanoparticles on amine-terminated silane monolayers [42], the use of silver and hydroxyapatite/TiO 2 slurries [43], and sol-gel procedures [40,44], among others.…”

Section: Introductionmentioning

confidence: 99%

“…Several strategies have been used for their preparation, including the complexation of Ag + ions with mercaptan-terminated phosphonates [41], silver sputtering [38], adsorption of nanoparticles on amine-terminated silane monolayers [42], the use of silver and hydroxyapatite/TiO 2 slurries [43], and sol-gel procedures [40,44], among others. It has been reported that these modified surfaces are biologically compatible [37,45] and present antimicrobial activity [46].…”

Section: Introductionmentioning

confidence: 99%

Spontaneous adsorption of silver nanoparticles on Ti/TiO2 surfaces. Antibacterial effect on Pseudomonas aeruginosa

Flores

Diaz

Rubert

et al. 2010

Journal of Colloid and Interface Science

151

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“…From the applied interests, this mechanism is a crucial middle step in (i) analysis, characterization, and manipulation of surfaces [15], (ii) semiconductor miniaturization and the production of self-assembled nanodevices [16], and (iii) micro-fabrication based on reactive ion etching and ion lithography [17]. In the recent past, electron transfer between various atomic species with surface containing nanosystems has become a topic of interest, probing effects of the nanosystem's size and shape to determine their electronic structures [18]. The energy conserving transfer of an active electron, the resonant charge transfer (RCT), occurs when a neardegeneracy is achieved between a shifted ion affinitylevel and various surface localized states.…”

Section: Introductionmentioning

confidence: 99%

Resonant Charge-Transfer in Grazing Collisions of H− with Vicinal Nanosurfaces on Cu(111), Au(100) and Pd(111) Substrates: A Comparative Study

Shaw

Monismith

Zhang

et al. 2019

Atoms

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We compare the electron dynamics at monocrystalline Cu(111), Au(100) and Pd(111) precursor substrates with vicinal nanosteps. The unoccupied bands of a surface superlattice are populated via the resonant charge transfer (RCT) between the surface and a H − ion that flies by at grazing angles. A quantum mechanical wave packet propagation approach is utilized to simulate the motion of the active electron where time-evolved wave packet densities are used to visualize the dynamics through the superlattice. The survived ion fraction in the reflected beam generally exhibits modulations as a function of the vicinal terrace size and shows peaks at those energies that access the image state subband dispersions. However, differences in magnitudes of the ion-survival as a function of the particular substrate selection as well as the ion-surface interaction time based on the choice of two ion-trajectories are examined. A square well model producing standing waves between the steps on the surface explains well the energies of the maxima in the ion survival probability for all the metals considered, indicating that the primary process of confinement induced subband formation is rather robust. The work may motivate measurements and applications of shallow-angle ion-scattering spectroscopy to access electronic substructures in periodically nanostructured surfaces.

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Growth of Ag nanostructures on TiO2(110)

Cited by 26 publications

References 22 publications

Ion survival in grazing collisions of H− with vicinal nanosurfaces as a probe for subband electronic structures

Ion survival in grazing collisions of H− with vicinal nanosurfaces as a probe for subband electronic structures

Spontaneous adsorption of silver nanoparticles on Ti/TiO2 surfaces. Antibacterial effect on Pseudomonas aeruginosa

Resonant Charge-Transfer in Grazing Collisions of H− with Vicinal Nanosurfaces on Cu(111), Au(100) and Pd(111) Substrates: A Comparative Study

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