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|Type: ||Journal article|
|Title: ||Molecular structure of 3-aminopropyltriethoxysilane layers formed on silanol-terminated silicon surfaces|
|Author: ||Acres, Robert G.|
Ellis, Amanda V.
Alvino, Jason Frankie
Lenahan, Claire E.
Khodakov, Dmitriy A.
Metha, Gregory Francis
|Citation: ||The Journal of Physical Chemistry C: 2012; 116(10):6289-6297|
|Publisher: ||American Chemical Society|
|Issue Date: ||2012|
|School/Discipline: ||School of Chemistry and Physics : Chemistry|
|Robert G. Acres, Amanda V. Ellis, Jason Alvino, Claire E. Lenahan, Dmitriy A. Khodakov, Gregory F. Metha, and Gunther G. Andersson|
|Abstract: ||The use of the coupling agent, 3-aminopropyltriethoxysilane (APTES), in the silanization reaction with silanolterminated silicon is an important surface modification reaction. Of particular importance is that the terminal amine functionalities of APTES are sufficiently exposed to the gas or liquid phase for further modifications, such as amide coupling reactions. Here, metastable induced electron spectroscopy (MIES) and UV photoelectron spectroscopy (UPS) were used to study the composition of the outermost layer of a silanol-terminated Si surface after silanization with APTES. High-resolution Xray photoelectron spectroscopy (XPS) was used to validate the attachment of APTES to the surface. Density of States (DOS) calculations were employed for interpreting the MIE spectra. Findings showed that amine functionalities covered only a small fraction of the APTES-modified Si surface.|
|Rights: ||© 2012 American Chemical Society|
|Appears in Collections:||Chemistry Publications|
|View citing articles in: ||Web of Science|
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