کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1677481 1518351 2013 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental procedures to mitigate electron beam induced artifacts during in situ fluid imaging of nanomaterials
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Experimental procedures to mitigate electron beam induced artifacts during in situ fluid imaging of nanomaterials
چکیده انگلیسی

Scanning transmission electron microscopy of various fluid and hydrated nanomaterial samples has revealed multiple imaging artifacts and electron beam–fluid interactions. These phenomena include growth of crystals on the fluid stage windows, repulsion of particles from the irradiated area, bubble formation, and the loss of atomic information during prolonged imaging of individual nanoparticles. Here we provide a comprehensive review of these fluid stage artifacts, and we present new experimental evidence that sheds light on their origins in terms of experimental apparatus issues and indirect electron beam sample interactions with the fluid layer. A key finding is that many artifacts are a result of indirect electron beam interactions, such as production of reactive radicals in the water by radiolysis, and the associated crystal growth. The results presented here will provide a methodology for minimizing fluid stage imaging artifacts and acquiring quantitative in situ observations of nanomaterial behavior in a liquid environment.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultramicroscopy - Volume 127, April 2013, Pages 53–63
نویسندگان
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