کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9595776 | 1507984 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The nucleation sites of Ag clusters grown by vapor deposition on a TiO2(1Â 1Â 0)-1Â ÃÂ 1 surface
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We present results of a scanning tunneling microscopy (STM) study of the nucleation and growth of silver clusters grown by vapor deposition on a rutile TiO2(1Â 1Â 0)-1Â ÃÂ 1 surface. We have scanned, with atomic resolution, the same surface area before and after Ag deposition, to determine the relationship between the nucleation sites and various surface defects. We have found that small precursor strands of (1Â ÃÂ 2) surface reconstruction have a higher propensity to nucleate Ag clusters than missing-oxygen vacancies and C-type defects. All studies were performed at room temperature, a regime in which the clusters nucleate and grow during the deposition, but do not coarsen.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 575, Issues 1â2, 20 January 2005, Pages 60-68
Journal: Surface Science - Volume 575, Issues 1â2, 20 January 2005, Pages 60-68
نویسندگان
Xiao Tong, Lauren Benz, Andrei Kolmakov, Steeve Chrétien, Horia Metiu, Steven K. Buratto,