کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7986587 1515142 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Kinematic HAADF-STEM image simulation of small nanoparticles
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Kinematic HAADF-STEM image simulation of small nanoparticles
چکیده انگلیسی
The high-angle annular dark field-scanning transmission electron microscopy (HAADF-STEM) has been widely used in nanoparticle characterization due to its relatively straightforward interpretability, although multislice simulation is often required in order to take into account the strong dynamical screening effect if quantitative structure information is needed. The multislice simulation is very time-consuming, which can be a hurdle in cases when one has to deal with a large set of images. In this paper, we introduce a simple computer program, based on kinematic-scattering method, which allows users to simulate HAADF-STEM images of small nanoparticles, in 'real time' on a standard desktop computer. By comparing with the sophisticated multislice simulation, we demonstrate that such an approach is adequate for nanoparticles of ∼3 nm in diameter (assuming an approximately spherical shape), particularly away from strict zone axis conditions. As an application, we show that the efficient kinematic simulation allows quick identification of orientation of nanoparticles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Micron - Volume 74, July 2015, Pages 47-53
نویسندگان
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