In Situ Liquid Cell Transmission Electron Microscopy Imaging of Nanocrystal Transformations
· Invited
Abstract
Nanocrystals often change structure and morphology during growth and self-assembly. This
imposes challenges as well as opens opportunities for understanding and engineering the
transformations for practical applications of these nanostructures. Due to the dynamic processes
at the nanoscale, in situ transmission electron microscopy (TEM) characterization has become
indispensable for investigating the nanoscale materials transformations. In this talk, I will show
examples on the structural transformations of nanocrystals during growth and self-assembly
revealed by in situ liquid cell TEM. Special attention has been made to the transient states.
Theoretical calculation provides valuable information for depth understanding of the
observations. The study of nanoscale dynamics aids the future design of novel materials and
devices.
imposes challenges as well as opens opportunities for understanding and engineering the
transformations for practical applications of these nanostructures. Due to the dynamic processes
at the nanoscale, in situ transmission electron microscopy (TEM) characterization has become
indispensable for investigating the nanoscale materials transformations. In this talk, I will show
examples on the structural transformations of nanocrystals during growth and self-assembly
revealed by in situ liquid cell TEM. Special attention has been made to the transient states.
Theoretical calculation provides valuable information for depth understanding of the
observations. The study of nanoscale dynamics aids the future design of novel materials and
devices.
*The project was funded by U.S. Department of Energy, Office of Science, Office of Basic Energy
Sciences, Materials Sciences and Engineering Division under Contract No. DE-AC02-05-CH11231
within the in situ TEM program (KC22ZH). Work at the Molecular Foundry was supported by the Office
of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-
AC02-05CH11231.
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Presenters
-
Haimei Zheng
- Lawrence Berkeley National Lab, University of California