کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7992741 1516149 2018 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Size-selected fabrication of alloy nanoclusters by plasma-gas condensation
ترجمه فارسی عنوان
تولید نانوساختارهای آلیاژی با استفاده از تراکم پلاسما
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
چکیده انگلیسی
This work reports on the production of alloy Ti-Cu nanoclusters by magnetron sputtering and plasma-gas condensation inside an ultra-high compatible system. Inert-gas was introduced inside a source chamber to generate plasma, sputter material from its target, and establish plasma-gas condensation. The nanocluster size and yield were controlled by adjusting the nanocluster source conditions: inert-gas flow rate fAr, aggregation length L, and sputtering discharge power P. Nanoclusters were produced by three-body collision that created nanocluster embryo, and grew further by two-body collision. The dependence of nanocluster size on nanocluster source conditions was modeled using a homogeneous nucleation model where a nanocluster grows from embryo by nanocluster-nanocluster collision and vapor condensation. Controlled oxidation of ionized nanocluster was conducted in-situ which was found to affect nanocluster charge but retain its size. The nanoclusters were deposited on SiO2/Si substrates with pre-formed metal electrodes to produce percolating nanocluster devices. Those devices have useful applications in many fields such as photoelectrochemical diodes for production of hydrogen fuel.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 745, 15 May 2018, Pages 299-305
نویسندگان
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