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A microscopic study of dissolution process of nanocrystals, an opposite while functioning cooperatively with growth in many cases, is an essential issue in variety aspects of research on nanocrystals. In this work, an in situ study of the dynamic dissolution process of palladium nanocrystals by liquid cell transmission electron microscope (TEM) is presented. The effective critical size (Rcritical)...
•We proposed a new algorithm to retrieve the projected complex potential from object's exit wave of HRTEM.•The proposed algorithm is based on the traditional multislice method which involves the convolution calculations.•The projected complex potential retrieved by this algorithm includes electrostatic and absorptive components, and the absorptive component is not related to the electrostatic component...
We propose an improved Wiener deconvolution filter for high-resolution transmission electron microscopy (HRTEM) images and apply it to an experimental graphite image. The improved filter can simultaneously eliminate the modulation transfer function effects of CCD cameras and reduce noise, thereby confirming its superiority over the general Wiener deconvolution and Wiener denoising filters. In the...
Image alignment is essential for image processing methods such as through-focus exit-wavefunction reconstruction and image averaging in high-resolution transmission electron microscopy. Relative image displacements exist in any experimentally recorded image series due to the specimen drifts and image shifts, hence image alignment for correcting the image displacements has to be done prior to any further...
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