# Flat-top silver nanocrystals on the two polar faces of ZnO: An all angle x-ray scattering investigation

@article{Jedrecy2005FlattopSN,
title={Flat-top silver nanocrystals on the two polar faces of ZnO: An all angle x-ray scattering investigation},
author={Nathalie Jedrecy and Gilles Renaud and R{\'e}mi Lazzari and Jacques Jupille},
journal={Physical Review B},
year={2005},
volume={72},
pages={045430}
}
The growth of silver at room temperature on the two polar faces of ZnO (0001) Zn terminated and (0001) O terminated, has been investigated in situ by using grazing incidence x-ray diffraction and grazing incidence small angle x-ray scattering (GISAXS). On both surfaces, silver forms nanoclusters with (111) top facets in hexagon-on-hexagon epitaxy with [101]{sub Ag} parallel [100]{sub ZnO}. Despite the high lattice mismatch in the latter direction (-11%), the Ag islands adopt their bulk…
27 Citations

## Figures and Tables from this paper

Band alignment at Ag/ZnO(0001) interfaces: A combined soft and hard x-ray photoemission study
Band alignment at the interface between evaporated silver films and Zn- or O-terminated polar orientations of ZnO is explored by combining soft and hard x-ray photoemissions on native and
Unstrained islands with interface coincidence sites versus strained islands: X-ray measurements on Ag ∕ ZnO
• Materials Science
• 2005
The structure and shape of (111) Ag nanocrystals formed at room temperature on basal ZnO planes is followed in situ by synchrotron surface x-ray measurements. On well-ordered surfaces, fully relaxed
Microscopic characteristics of the Ag(111)/ZnO(0001) interface present in optical coatings
• Materials Science
• 2007
A first-principles computational method is used to investigate the microscopic properties of the $\mathrm{Ag}(111)∕\mathrm{Zn}\mathrm{O}(0001)$ interface that is often present in optical coatings
Orientation-dependent chemistry and band-bending of Ti on polar ZnO surfaces.
• P. Borghetti, +4 authors J. Jupille
• Chemistry, Materials Science
Physical chemistry chemical physics : PCCP
• 2017
A difference in the activation temperature between the O-terminated (500 K) and Zn-terminate (700 K) surfaces is observed, which is tentatively explained by different electric fields in the space charge layer at ZnO surfaces.
The investigation of Ag/ZnO interface system by first principle: The structural, electronic and optical properties
Abstract Ag/ZnO interfaces have been investigated for both of Zn-termination and O-termination by the first principle based on density functional theory. Our calculations demonstrate that the Ag
Atmospheric pressure oxidation of (Pt(111)
• Chemistry
• 2008
The oxidation of the platinum (111) single crystal surface and the formation of platinum dioxide have been studied by in situ surface x-ray diffraction and x-ray reflectivity. At an oxygen partial
Polarity of oxide surfaces and nanostructures
• Physics
• 2008
Whenever a compound crystal is cut normal to a randomly chosen direction, there is an overwhelming probability that the resulting surface corresponds to a polar termination and is highly unstable.
Probing surface and interface morphology with Grazing Incidence Small Angle X-Ray Scattering
• Materials Science
• 2009
Abstract Nanoscience and nanotechnology are tremendously increasing fields of research that aim at producing, characterizing and understanding nanoobjects and assemblies of nanoobjects. Their new
Plasmonic excitations in ZnO/Ag/ZnO multilayer systems: Insight into interface and bulk electronic properties
• Physics
• 2011
Electron energy-loss spectroscopy experiments in transmission were carried out on silver-based multi-layer systems, consisting of a silver layer of various thicknesses (8, 10 and 50 nm) sandwiched
Controlling Ag diffusion in ZnO by donor doping: A first principles study
• Materials Science
• 2017
Abstract Silver interdiffusion is often detrimental to the performance of thin-film coatings and devices that contain Ag/ZnO interfaces. Using a first principles computational analysis, a strategy is

## References

SHOWING 1-10 OF 49 REFERENCES
The hexagonal polar ZnO(0001)-(1×1) surfaces: structural features as stemming from X-ray diffraction
• Chemistry
• 2000
The ZnO surfaces, apart from their role in catalytic processes, raise fundamental questions regarding the key parameters, which stabilise ionic material surfaces. The ZnO structure consists of
Growth model for metal films on oxide surfaces: Cu on ZnO(0001)-O.
• Materials Science, Medicine
Physical review. B, Condensed matter
• 1993
A model based on the energetics of the system which readily explains the apparent contradiction between this tendency for 3D clustering, and the dynamical effect which leads to efficient wetting for coverages up to 1/2 monolayer at low temperatures is presented.
Structure of Pt Overlayers on ZnO(0001) and ZnO(0001̄) Surfaces
• Chemistry
• 2000
The growth of Pt films on the Zn- and O-terminated polar surfaces of ZnO has been studied. Clean surfaces, prepared by sputtering and annealing, were dosed with Pt by vapor deposition. Properties of
A comparison of Pt overlayers on α-Al2O3(0001), ZnO(0001)Zn, and ZnO(0001)O
• Chemistry
• 1990
The growth of Pt films on ZnO(0001)Zn and ZnO(0001)O and their adsorption properties for CO have been studied and compared to results obtained for Pt on α‐Al2O3(0001). Samples were prepared by vapor
Oxide surfaces and metal/oxide interfaces studied by grazing incidence X-ray scattering
Abstract Experimental determinations of the atomic structure of insulating oxide surfaces and metal/oxide interfaces are scarce, because surface science techniques are often limited by the insulating
Silver layers on oxide surfaces: morphology and optical properties
• Chemistry
• 2001
Trends in the wetting of oxide substrates by silver are tested by surface differential reflectance via the determination of the aspect ratio of the silver clusters: (i) the wetting of α-Al 2 O 3
STM Study of the Geometric and Electronic Structure of ZnO (0001)-Zn, (0001bar)-O, (101bar 0), and (1120bar) Surfaces
Abstract The geometric and electronic structure of clean (0 0 0 1), ( 0 0 0 1 ), ( 1 1 2 0 ), and ( 1 0 1 0 ) faces of ZnO single crystals have been studied with scanning tunneling microscopy (STM)
Interaction of platinum films with the (0001̄) and (0001) surfaces of ZnO
• Chemistry
• 1994
In this investigation, the growth, structure, and electronic properties of Pt films on the polar surfaces of ZnO were examined using high‐resolution electron energy‐loss spectroscopy (HREELS) and
Grazing-Incidence Small-Angle Scattering. Morphology of Deposited Clusters and Nanostructure of Thin Films
• Materials Science
• 1997
It is shown that grazing-incidence small-angle X-ray scattering (GISAXS) is a new experimental technique that combines both grazing incidence and scattering at low angles. The experiments are carried
Apparatus for real time in situ quantitative studies of growing nanoparticles by grazing incidence small angle X-ray scattering and surface differential reflectance spectroscopy
• Chemistry
• 2004
Abstract This paper describes an experimental setup that was developed to simultaneously perform grazing incidence small angle X-ray scattering (GISAXS) and surface differential reflectance