Imperfections in the bulk structures are shown to influence the nature of the surface vacancies at and near the points of emergence of the imperfections. The nature of surface patches and domains is illustrated. The formation and growth of crystal surfaces are briefly discussed. Finally, the ...
In subject area: Physics and Astronomy Surface defects are imperfections such as surface roughness, pores, and coarse grains that can lead to material failure by initiating cracks, reducing strength, ductility, and fatigue life. These defects are influenced by machining parameters and can be mitigated...
Imperfections and their passivation in halide perovskite solar cells. Chem. Soc. Rev. 48, 3842–3867 (2019). CAS PubMed Google Scholar Feng, X. et al. Restricting the formation of Pb–Pb dimer via surface Pb site passivation for enhancing the light stability of perovskite. Small 18, ...
内容提示: Solid-state Tube Wakef i eld Acceleratorusing Surface Waves in CrystalsAakash A. SahaiCollege of Engineering and Applied ScienceUniversity of Colorado, Denver, CO 80204aakash.sahai@gmail.comToshiki Tajima, Peter TaborekDepartment of Physics & Astronomy and Applied PhysicsUniversity of ...
It was found that most frequently applied cleaning methods lead to structural imperfections in the form of etch pits. Repeated deposition and desorption of Ag greatly enhances the rate of formation of such pits. The pits themselves are not always detectable by AES or LEED/RHEED, but can be ...
This work suggests that future experimental work should focus on eliminating/overcoming these surface imperfections, which promise an order of magnitude improvement in permeability. Zeolite crystal with porous structure is predicted to be a good membrane material for water purification, but experiments ...
1. The use, as a screen cover for hiding scratches or imperfections on the surface of projection screens, of a translucent sheet having a thickness of from 0.1 - 5 mm and comprising synthetic resin matrix containing light diffusing polymer particles and having 80% or more of light transmittance...
Due to the inverted orbitals of the conduction and valence bands under strong spin-orbit interactions, a linear crossing of the electronic states at the TI surface is guaranteed by the bulk-boundary correspondence and is protected from imperfections in the samples2. The surface state possesses a ...
These often lead to extremely large fields around the imperfections. An example is surface-enhanced Raman scattering (SERS) from adsorbed molecules on silver. Surface waves also play a role when light is transmitted through apertures smaller than the wavelength as in near-field microscopy. Recently,...
While there are well established simulation and experimental methodologies on investigating the role of surface imperfections/defects on the extended solid catalyst surfaces, there are still substantial challenges to steadily apply the obtained knowledge in order to predictably tailor the nanoparticle ...