Determination of atomic positions from time resolved high resolution transmission electron microscopy images.

ABSTRACT: For many reaction processes, such as catalysis, phase transformations, nanomaterial synthesis etc., nanoscale observations at high spatial (sub-nanometer) and temporal (millisecond) resolution are required to characterize and comprehend the underlying factors that favor one reaction over another. The combination of such spatial and temporal resolution (up to 600 µs), while rich in information, produces a large number of snapshots, each of which must be analyzed to obtain the structural (and thereby chemical) information. Here we present a methodology for automated quantitative measurement of real-time atomic position fluctuations in a nanoparticle. We leverage a combination of several image processing algorithms to precisely identify the positions of the atomic columns in each image. A geo

SUBMITTER: Hussaini Z 

PROVIDER: S-EPMC11305480 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature