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Bulk and Surface Micromachining
Bulk and Surface Micromachining

... Bulk and Surface Micromachining for the Miller Indices <110>:<100>:<111>, planar selectivity can be as high as 600:400:1. However, KOH is not used in micromachining because its potassium ion content bans it from clean room operations. Also, it is highly corrosive and attacks aluminum, which makes it ...
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... Cu(111), which is used as a substrate to explore charge transport to nanostructures including Au adatoms24–26 . While the stoichiometry and atomic structure of ultra-thin MgO corresponds that of the bulk MgO, this is not always the case. The most prominent example of this is an ultra-thin alumina fi ...
A Quantitative Theory of Negative Adsorption of Nonelectrolytes
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... dynamics in thin film samples using fs laser techniques to shock load the sample and interrogate the shock state. Some surprises have been discovered. These include the production of extremely flat shock waves by the non-linear optical interaction of 130 fs duration shock drive laser pulses with the ...
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... solution of all possible isomers (with point group symmetry): DDDD (T), DDDL (C3), DDLL (S4), and their mirror images. In contrast, the tetrahedral complex [Ga426] has strongly coupled metal centers, such that if one metal center initially has a L configuration, the metal center across an edge from ...
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Aggregation and Adsorption at Interfaces

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Sahand University of Technology

... 1. It must wet the surfaces, that is it must spread and make a contact angle approaching zero. Intimate contact is required between the molecules of the adhesive and the atoms and molecules in the surface. When applied the adhesive will be a liquid of relatively low viscosity. 2. The adhesive must t ...
pyrene on Au(111) - American Chemical Society
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Unit - II Electrochemistry
Unit - II Electrochemistry

... potential of any electrode system (E) on these factors is given by Nernst equation E = E 0 + (RT / nF) ( log Mn+) Potential evolves from the inter-conversion between chemical and electrical forms of energy. The equation pertaining to these two forms of energy is G = G0 + RT ln K ----- (1) where G ...
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Surface properties of transition metal oxides

Transition metal oxides are compounds composed of oxygen atoms bound to transition metals. They are commonly utilized for their catalytic activity and semiconductive properties. Transition metal oxides are also frequently used as pigments in paints and plastics, most notably titanium dioxide. Transition metal oxides have a wide variety of surface structures which affect the surface energy of these compounds and influence their chemical properties. The relative acidity and basicity of the atoms present on the surface of metal oxides are also affected by the coordination of the metal cation and oxygen anion, which alter the catalytic properties of these compounds. For this reason, structural defects in transition metal oxides greatly influence their catalytic properties. The acidic and basic sites on the surface of metal oxides are commonly characterized via infrared spectroscopy, calorimetry among other techniques. Transition metal oxides are also able to undergo photo-assisted adsorption and desorption to control their semiconductivity. One of the more researched properties of these compounds is their response to electromagnetic radiation, which makes them useful catalysts for redox reactions, isotope exchange, specialized surfaces, and a variety of other uses currently being studied.
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