کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9594508 | 1507964 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Removal of self-assembled monolayers of alkanethiolates on gold by plasma cleaning
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Plasmas of hydrogen or oxygen were used to remove self-assembled monolayers (SAMs) of alkanethiolates from gold surfaces. X-ray photoelectron spectroscopy (XPS), scanning tunneling microscopy (STM), ellipsometry, and contact angle measurements were used to compare the efficiency of the different plasmas and to explore their respective influence on the surface topology. Both plasmas were able to remove the SAM from the gold surface within less than 60Â s. While the hydrogen plasma produces a de facto sulfur-free surface, oxygen plasma cleaning leads to an Au2O3 surface contaminated with oxidized sulfur species (probably sulfonates and sulfate). Nevertheless, the plasmas alter the roughness of the gold surfaces only marginally, as demonstrated by STM.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 595, Issues 1â3, 5 December 2005, Pages 56-63
Journal: Surface Science - Volume 595, Issues 1â3, 5 December 2005, Pages 56-63
نویسندگان
Kevin Raiber, Andreas Terfort, Carsten Benndorf, Norman Krings, Hans-Henning Strehblow,