کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5423791 1395801 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Time-of-flight distributions of HD molecules abstracted at a Si(1 0 0) surface
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Time-of-flight distributions of HD molecules abstracted at a Si(1 0 0) surface
چکیده انگلیسی
We study the dynamics of D abstraction by ∼0.05 eV H atoms on a Si(1 0 0) surface. Time-of-flight (TOF) distributions of the abstracted HD molecules are measured using a quasi-random chopper/cross-correlation method. The measured TOF distribution is found to be broad and fast. The distribution is decomposed into two components being related to direct abstraction (ABS) and adsorption-induced-desorption (AID), which were revealed in the kinetics studies. The best curve fits yield mean kinetic energies of 1.15 ± 0.20 eV and 0.33 ± 0.05 eV for the ABS and AID components, respectively. Dynamics and kinetics of hydrogen abstraction at Si(1 0 0) surfaces are consistently understood.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 603, Issue 16, 15 August 2009, Pages 2607-2611
نویسندگان
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