کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1691039 1011291 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Size dependant electronic structure from InP nano-dots
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سطوح، پوشش‌ها و فیلم‌ها
پیش نمایش صفحه اول مقاله
Size dependant electronic structure from InP nano-dots
چکیده انگلیسی
Size dependant core-level shifts have been investigated here for the InP nano-dots fabricated by the 3 keV ion irradiation. The self assembled nano dots exhibit core-level shifts and band gap expansion. The core-level shifts are however inhomogeneous, not exhibiting any systematic dependence on the size of the dots. The inhomogeneous core-level shifts as well as the band gap expansion are the result of cumulative effect of the nano-dimensional sizes and the stoichiometric variations in InP nano dots. The nucleation of the self assembled nano dots is promoted by the creation of In-rich zones after the preferential sputtering of P. Decreased In/P concentration, at longer sputtering durations, leads to the fragmentation of dots.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vacuum - Volume 84, Issue 5, 10 December 2009, Pages 602-606
نویسندگان
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