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Chemical vapor deposition (CVD) is a vacuum deposition method used to produce high-quality, and high-performance, solid materials. The process is often used in the semiconductor industry to produce thin films .
For example, one-phonon (infrared) absorption in pure diamond lattice is forbidden because the lattice has an inversion center. However, introducing any defect (even "very symmetrical", such as N-N substitutional pair) breaks the crystal symmetry resulting in defect-induced infrared absorption, which is the most common tool to measure the ...
In chemistry, a precursor is a compound that contributes in a chemical reaction and produces another compound, or a chemical substance that gives rise to another more significant chemical product. Since several years metal-organic compounds are widely used as molecular precursors for the chemical vapor deposition process (MOCVD).
When the vapor source is a liquid or solid, the process is called physical vapor deposition (PVD), [3] which is used in semiconductor devices, thin-film solar panels, and glass coatings. [4] When the source is a chemical vapor precursor, the process is called chemical vapor deposition (CVD).
A large number of compounds belonging to practically all classes have been synthesized under hydrothermal conditions: elements, simple and complex oxides, tungstates, molybdates, carbonates, silicates, germanates etc. Hydrothermal synthesis is commonly used to grow synthetic quartz, gems and other single crystals with commercial value.
N-type diamond films are reproducibly synthesized by phosphorus doping during chemical vapor deposition. [35] Diode p-n junctions and UV light emitting diodes (LEDs, at 235 nm) have been produced by sequential deposition of p-type (boron-doped) and n-type (phosphorus-doped) layers. [36]
This category is being considered for merging into Category:Chemical vapor deposition. This does not mean that any of the pages in the category will be deleted. They may, however, be recategorized. Please share your thoughts on the matter at this category's entry on the Categories for discussion page. Please do not empty the category or remove ...
A more advanced method using an aqueous solution was started in 1600 CE while the melt and vapor methods began around 1850 CE. [6] Single-crystal growth methods tree diagram. Basic crystal growth methods can be separated into four categories based on what they are artificially grown from: melt, solid, vapor, and solution. [2]