کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9594928 1395915 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Self-aligned silicon quantum wires on Ag(1 1 0)
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Self-aligned silicon quantum wires on Ag(1 1 0)
چکیده انگلیسی
Upon deposition of silicon onto the (1 1 0) surface of a silver crystal we have grown massively parallel one-dimensional Si nanowires. They are imaged in scanning tunnelling microscopy as straight, high aspect ratio, nanostructures, all with the same characteristic width of 16 Å, perfectly aligned along the atomic troughs of the bare surface. Low energy electron diffraction confirms the massively parallel assembly of these self-organized nanowires. Photoemission reveals striking quantized states dispersing only along the length of the nanowires, and extremely sharp, two-components, Si 2p core levels. This demonstrates that in the large ensemble each individual nanowire is a well-defined quantum object comprising only two distinct silicon atomic environments. We suggest that this self-assembled array of highly perfect Si nanowires provides a simple, atomically precise, novel template that may impact a wide range of applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 574, Issue 1, 1 January 2005, Pages L9-L15
نویسندگان
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