کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1677468 | 1518339 | 2014 | 9 صفحه PDF | دانلود رایگان |
• Consideration of crystalline metal-film-based phase-plates (PP).
• Simulation of the effect of monocrystalline and textured nanocrystalline PPs.
• Experimental application of a textured nanocrystalline Au-film-based Hilbert PP.
• Consistent PP properties obtained in simulation and experiment.
Thin-film-based phase-plates are applied to enhance the contrast of weak-phase objects in transmission electron microscopy. In this work, metal-film-based phase-plates are considered to reduce contamination and electrostatic charging, which up to now limit the application of phase-plates fabricated from amorphous C-films. Their crystalline structure requires a model for the simulation of the effect of crystallinity on the phase-plate properties and the image formation process. The model established in this work is verified by experimental results obtained by the application of a textured nanocrystalline Au-film-based Hilbert phase-plate. Based on the model, it is shown that monocrystalline and textured nanocrystalline phase-plate microstructures of appropriate thickness and crystalline orientation can be a promising approach for phase-contrast transmission electron microscopy.
Journal: Ultramicroscopy - Volume 139, April 2014, Pages 29–37