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Octadecyltrichlorosilane (OTS, or n-octadecyltrichlorosilane) is an organometallic chemical. It is used in semiconductor industry to form self-assembled monolayer thin films on silicon dioxide substrates. Its structural chemical formula is CH3(CH2)17SiCl3. It is flammable, reacts violently with water, and is sensitive to air. It is corrosive and can severely damage mucous membranes. Its EINECS number is 203-930-7.
Additional recommended knowledge
Octadecyltrichlorosilane is an amphiphilic molecule consisting of a long-chain alkyl group (C18H37–) and a polar head group (SiCl3–), which forms Self-Assembled Monolayers (SAMs) on various oxidic substrates. 
OTS finds its use in molecular electronics, as thin insulating gates in Metal-Insulator Semiconductors. 
Dodecyltrichlorosilane, an OTS analog with shorter alkyl chain, is used for the same purpose as well.
OTS-PVP films are used in organic-substrate LCD displays. 
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Octadecyltrichlorosilane". A list of authors is available in Wikipedia.|