Search
- https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Surface_Science_(Nix)/07%3A_Surface_Imaging_and_Depth_Profiling/7.04%3A_SIMS_-_Imaging_and_Depth_ProfilingSince the SIMS technique utilizes a beam of atomic ions (i.e. charged particles) as the probe, it is a relatively easy matter to focus the incident beam and then to scan it across the surface to give ...Since the SIMS technique utilizes a beam of atomic ions (i.e. charged particles) as the probe, it is a relatively easy matter to focus the incident beam and then to scan it across the surface to give an imaging technique.
- https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Surface_Science_(Nix)/06%3A_Overlayer_Structures_and_Surface_Diffraction
- https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Surface_Science_(Nix)/05%3A_Surface_Analytical_Techniques/5.01%3A_Surface_Sensitivity_and_Surface_SpecificityIn its simplest form, the question of sensitivity boils down to whether it is possible to detect the desired signal above the noise level. Assuming that a technique of sufficient sensitivity can be f...In its simplest form, the question of sensitivity boils down to whether it is possible to detect the desired signal above the noise level. Assuming that a technique of sufficient sensitivity can be found, another major problem that needs to be addressed in surface spectroscopy is distinguishing between signals from the surface and the bulk of the sample.
- https://chem.libretexts.org/Courses/Ursinus_College/CHEM322%3A_Inorganic_Chemistry/06%3A_Solid_State_Chemistry/6.03%3A_X-Ray_Crystallography_of_Solids/6.3.01%3A_Miller_Indices_(hkl)In this case the intercept on the x-axis is at x = a ( at the point (a,0,0) ), but the surface is parallel to the y- and z-axes - strictly therefore there is no intercept on these two axes but we shal...In this case the intercept on the x-axis is at x = a ( at the point (a,0,0) ), but the surface is parallel to the y- and z-axes - strictly therefore there is no intercept on these two axes but we shall consider the intercept to be at infinity (∞) for the special case where the plane is parallel to an axis.
- https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Surface_Science_(Nix)/01%3A_Structure_of_Solid_SurfacesIn most technological applications, metals are used either in a finely divided form or in a massive, polycrystalline form. At the microscopic level, most materials, with the notable exception of a fe...In most technological applications, metals are used either in a finely divided form or in a massive, polycrystalline form. At the microscopic level, most materials, with the notable exception of a few truly amorphous specimens, can be considered as a collection or aggregate of single crystal crystallites. The surface chemistry of the material as a whole is therefore crucially dependent upon the nature and type of surfaces exposed on these crystallites.
- https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Surface_Science_(Nix)/05%3A_Surface_Analytical_Techniques
- https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Surface_Science_(Nix)/02%3A_Adsorption_of_Molecules_on_Surfaces/2.02%3A_How_do_Molecules_Bond_to_Surfaces%3FThere are two principal modes of adsorption of molecules on surfaces: Physical Adsorption (physisorption ) and Chemical Adsorption (chemisorption). The basis of distinction is the nature of the bondin...There are two principal modes of adsorption of molecules on surfaces: Physical Adsorption (physisorption ) and Chemical Adsorption (chemisorption). The basis of distinction is the nature of the bonding between the molecule and the surface.
- https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Surface_Science_(Nix)/07%3A_Surface_Imaging_and_Depth_Profiling/7.02%3A_Electron_Microscopy_-_SEM_and_SAMThe two forms of electron microscopy which are commonly used to provide surface information are: Secondary Electron Microscopy ( SEM ) - which provides a direct image of the topographical nature of t...The two forms of electron microscopy which are commonly used to provide surface information are: Secondary Electron Microscopy ( SEM ) - which provides a direct image of the topographical nature of the surface from all the emitted secondary electrons and Scanning Auger Microscopy ( SAM ) - which provides compositional maps of a surface by forming an image from the Auger electrons emitted by a particular element.
- https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Surface_Science_(Nix)/05%3A_Surface_Analytical_Techniques/5.03%3A_Photoelectron_SpectroscopyPhotoelectron spectroscopy utilizes photo-ionization and analysis of the kinetic energy distribution of the emitted photoelectrons to study the composition and electronic state of the surface region o...Photoelectron spectroscopy utilizes photo-ionization and analysis of the kinetic energy distribution of the emitted photoelectrons to study the composition and electronic state of the surface region of a sample. Traditionally, when the technique has been used for surface studies it has been subdivided according to the source of exciting radiation into X-ray Photoelectron Spectroscopy (XPS) and Ultraviolet Photoelectron Spectroscopy (UPS).
- https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Surface_Science_(Nix)/02%3A_Adsorption_of_Molecules_on_Surfaces/2.06%3A_The_Desorption_ProcessAn adsorbed species present on a surface at low temperatures may remain almost indefinitely in that state. As the temperature of the substrate is increased, however, there will come a point at which t...An adsorbed species present on a surface at low temperatures may remain almost indefinitely in that state. As the temperature of the substrate is increased, however, there will come a point at which the thermal energy of the adsorbed species is such that one of several things may occur. Including that the species may desorb from the surface and return into the gas phase. This the desorption process.
- https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Surface_Science_(Nix)/01%3A_Structure_of_Solid_Surfaces/1.07%3A_Relaxation_and_ReconstructionThe phenomena of relaxation and reconstruction involve rearrangements of surface atoms, this process being driven by the energetics of the system. As with all processes, there may be kinetic limitatio...The phenomena of relaxation and reconstruction involve rearrangements of surface atoms, this process being driven by the energetics of the system. As with all processes, there may be kinetic limitations which prevent or hinder these rearrangements at low temperatures. Both processes may occur with clean surfaces in ultrahigh vacuum, but it must be remembered that adsorption of species onto the surface may enhance, alter or even reverse the process!
