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yzou_ua
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Always be used in experiments... but when it appears in literature, most authors never tell the exact value of 1 ML (monolayer).
So, what is the value, generally??
So, what is the value, generally??
yzou_ua said:Always be used in experiments... but when it appears in literature, most authors never tell the exact value of 1 ML (monolayer).
So, what is the value, generally??
ZapperZ said:This is not a universal value. It depends on the material and crystal structure of what is being deposited.
Zz.
yzou_ua said:So w/o telling from author, we can never know it??
ZapperZ said:Unless you know the crystal structure. If the author usually doesn't say, then it's a "common" material that he/she would assume that everyone knows already. This is often the case for, say, high-Tc superconductors or well-known compounds such as Al2O3 or TiN.
Zz.
f95toli said:2 monolayers will probably be of that order of magnitude, yes. But the exact value will depend on e.g. the termination of the surface etc.
Also, 2.5ML would mean 2 complette layers and one half-filled layer; meaning the top-most layer does not cover the whole surface. Again, what it looks really like will depend on the materials etc.
Btw, the reason the thickness is given in monolayers is because it is much easier to "count" the number of layers (using RHEED oscillations) during the film growth than it is to actually measure the thickness of the film.
1 monolayer refers to a single layer of molecules or atoms that are arranged in a regular pattern on a surface, such as a solid or liquid. It is often used to describe the thickness or coverage of a material.
The length of 1 monolayer can vary depending on the size and shape of the molecules or atoms that make up the layer. It can range from a few nanometers to several micrometers.
The term "monolayer" comes from the Latin prefix "mono" meaning one and the word "layer." It is used to describe a single layer of molecules or atoms on a surface.
1 monolayer is typically measured using specialized techniques such as atomic force microscopy or ellipsometry. These methods can accurately determine the thickness and coverage of a monolayer on a surface.
1 monolayer is important in scientific research because it can provide valuable information about the properties and behavior of materials at the molecular level. It is also used in various fields such as nanotechnology, surface science, and biophysics.