کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5396741 | 1505763 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Oriented self-assembled monolayers of bifunctional molecules on InAs
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Oriented self-assembled monolayers of bifunctional molecules on InAs Oriented self-assembled monolayers of bifunctional molecules on InAs](/preview/png/5396741.png)
چکیده انگلیسی
We describe the formation and characterization of oriented self-assembled monolayers (SAMs) of bifunctional molecules on InAs. Cysteamine, a small molecule with thiol and amine termini, can be efficiently deposited on InAs(001) from a basic aqueous solution. Analysis of the deposited films using X-ray photoelectron spectroscopy (XPS) reveals that cysteamine forms a monolayer, in which molecules are oriented and attached to the InAs surface exclusively via their thiol termini. The free amine ligands presented at the interface of the resulting oriented SAM should provide a convenient pathway for subsequent surface functionalization. In addition, cysteamine deposition efficiently removes InAs native oxides; the resulting cysteamine SAM provides surface passivation, protecting the InAs substrate from reoxidation after short-term exposures to air and aqueous solutions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electron Spectroscopy and Related Phenomena - Volume 172, Issues 1â3, May 2009, Pages 42-46
Journal: Journal of Electron Spectroscopy and Related Phenomena - Volume 172, Issues 1â3, May 2009, Pages 42-46
نویسندگان
R. Stine, D.Y. Petrovykh,