کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5425287 | 1395852 | 2008 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The C60/Au(1Â 1Â 1) interface at room temperature: A scanning tunnelling microscopy study
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The interface between adsorbed C60 molecules and the (1 1 1) surface of gold at room temperature has been studied with the scanning tunnelling microscopy (STM). The first monolayer of C60 on Au(1 1 1) is known to exist in several phases: in phase, 23Ã23R30°, and R14°, depending on the direction of the close-packed C60 molecules in relation to the close-packing direction of the gold atoms. For the in-phase C60 overlayer where the close-packing direction of the C60 molecules is aligned with that of the gold atoms, we find that the 22Ã3 reconstruction of the underlying Au(1 1 1) surface remains largely unchanged. For the 23Ã23R30° phase, the surface reconstruction is also preserved to a great extent if the molecular layer sits on a region consisting of small 22Ã3 domains. On a larger domain, the 23Ã23R30° structure is found to lift the surface reconstruction of Au(1 1 1). The R14° structure is observed for the first time in STM and a structural model consistent with findings from both STM and LEED is presented. A fairly regular pattern of atomic re-arrangement with a quasi-period of â¼6 nm is found in regions of the Au(1 1 1) surface underneath the R14° C60 layer.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 602, Issue 4, 15 February 2008, Pages 885-892
Journal: Surface Science - Volume 602, Issue 4, 15 February 2008, Pages 885-892
نویسندگان
X. Zhang, F. Yin, R.E. Palmer, Q. Guo,