Why is iridium the best substrate for single crystal diamond …
Using chemical vapor deposition techniques, polycrystalline diamond has been successfully grown on many substrates. However, iridium emerges in providing highly oriented films, significantly better than any other transition metals.
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High-quality and Large-diameter Diamond Substrates - Orbray
2021年6月30日 · A metal called iridium is a suitable material. The concept was to embed a large number of minute diamond crystals into the surface of the iridium metal, and grow diamond crystal by the CVD method upon it. The diamond with the same diameter as the substrate should grow on top of the iridium substrate.
Heteroepitaxial growth of diamond on an iridium (100) substrate …
2000年7月3日 · An iridium (100) layer was epitaxially coated on a MgO (100) plate by sputtering at 1123 K, and was then utilized in the formation of diamond by microwave plasma-assisted chemical vapor deposition (MPCVD) using methane as the carbon source.
Single Crystal Diamond Growth on Iridium - 百度学术
The initial mosaic structure of thin heteroepitaxial diamond films on Ir transforms into a real single crystal by a mosaic spread reduction process that is based on the merging of grains by the formation of disclinations.
Mosaicity, dislocations and strain in heteroepitaxial diamond grown …
2016年6月1日 · The present study provides a multi-scale investigation of the crystalline quality and the structural defects present in heteroepitaxial diamond films grown on iridium/SrTiO 3 (001) substrates by microwave plasma assisted chemical vapor deposition.
Epitaxial diamond on Ir/ SrTiO3/Si (001): From sequential material ...
2020年5月1日 · Diamond heteroepitaxy on iridium becomes a credible alternative to single crystal diamond materials obtained by homoepitaxial growth by Chemical Vapor Deposition (CVD) or by High Pressure High Temperature (HPHT).
Single Crystal Diamond Growth on Iridium - ResearchGate
2014年3月1日 · The initial mosaic structure of thin heteroepitaxial diamond films on Ir transforms into a real single crystal by a mosaic spread reduction process that is based on the merging of grains by the...
Using chemical vapor deposition techniques, polycrystalline diamond has been successfully grown on many substrates. However, iridium emerges in providing highly oriented films, significantly better than any other transition metals.
Epitaxial Growth of Diamond on Iridium - IOPscience
1996年8月1日 · Epitaxial growth of diamond on iridium thin films was performed by direct-current plasma chemical vapor deposition with ion irradiation pretreatment of the substrate. Pyramidal epitaxial diamond particles with a number density of ∼10 8 cm -2 were grown on the iridium film.
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