کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5423727 1507949 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Adsorption mechanisms of fluorocarbon polymers at ultra low-k surfaces
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Adsorption mechanisms of fluorocarbon polymers at ultra low-k surfaces
چکیده انگلیسی
We report ab initio investigations for the adsorption mechanisms of fluorocarbon polymers at ultra low-k (ULK) surfaces. As prototypical example we study a C2F4-molecule adsorbed at a passivated SiO2:CH3(001) surface. The calculated adsorption energies between 1.37 and 1.95 eV imply a chemisorption bonding mechanism. The detailed analysis of all investigated structures provides a simple rule to make a rough estimate of the stability of adsorbed fluorocarbon polymers. In addition, an adsorption pathway is proposed and used to suggest a possible adsorption mechanism, triggered by an electron transfer between the ULK surface and the C2F4 molecule.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 604, Issues 19–20, September 2010, Pages 1808-1812
نویسندگان
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