کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1790008 1524406 2015 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Calculation of surface diffusivity and residence time by molecular dynamics with application to nanoscale selective-area growth
ترجمه فارسی عنوان
محاسبه نفوذپذیری سطح و زمان اقامت توسط پویایی مولکولی با استفاده از رشد نانومواد انتخابی منطقه
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
چکیده انگلیسی
The surface diffusivity and residence time were calculated by molecular dynamics simulations in order to solve the surface diffusion equations for selective-area growth. The calculations for CdTe/CdS material system were performed in substrates with Cd termination and S termination. The surface diffusivity and residence time were obtained at different temperatures (600 K, 800 K, 1000 K, 1200 K, and 1400 K). The thermal activation energies were extracted from Arrhenius equation for each substrate termination. Thereafter, values obtained by molecular dynamics were used in a surface diffusion model to calculate the surface concentration profile of adatoms. Alternating the surface termination has the potential to achieve nanoscale selective-area growth without the need of a dielectric film as a mask.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Crystal Growth - Volume 423, 1 August 2015, Pages 55-60
نویسندگان
, , , , ,