Diamondlike carbon an overview sciencedirect topics. Synthesis and properties of freestanding monolayer. Dlc was formed mainly by cvd using gaseous hydrocarbon such as methane, benzene, and acetylene. Diamondlike carbon dlc is a metastable form of amorphous carbon containing a significant fraction of sp 3 bonds. Pdf evaluation of amorphous diamondlike carbon and. Thus, dlc is distinguished by the amounts of hydrogen and sp3bonded carbon, and the cluster struc. H, which are characterized by the differences in the amounts of hydrogen and sp3bonded carbon.
H to hydrogenated tetrahedral amorphous carbon tac. Although films of diamondlike carbon dlc and hexagonal boron nitride hbn have shown low dielectric constants in the range of 3 to 4, these materials have been unsuitable for use as. Raman spectroscopy of amorphous, nanostructured, diamond. Diamondlike carbon dlc is an amorphous carbon with significant sp 3 bondings. It can have a high mechanical hardness, chemical inertness, optical transparency, and it is a wide band gap semiconductor. Tribological properties of amorphous diamondlike carbon. Diamondlike carbon films contain significant numbers of sp3 type c bonds, giving them attractive physical and mechanical properties that are similar to diamond. The excellent physical properties of this stable, free standing monolayer amorphous carbon could prove useful for permeation and diffusion barriers in applications such as magnetic recording. Diamondlike carbon is a name attributed to a variety of amorphous carbon materials, some containing up to about 50 at. Dlc films have widespread applications as protective coatings in areas such as optical.
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