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Updated: Mar 3, 2026

Studying Dynamic Processes of Nano-sized Objects in Liquid using Scanning Transmission Electron Microscopy
Published on: February 5, 2017
Note on in situ (scanning) transmission electron microscopy study of liquid samples
1Department of Physics, Arizona State University, Tempe AZ 85286-1504, United States.
Abstract:
Liquid cell (scanning) transmission electron microscopy has been developed rapidly, using amorphous SiNx membranes as electron transparent windows. The current interpretations of electron beam effects are mainly based on radiolytic processes. In this note, additional effects of the electric field due to electron-beam irradiation are discussed. The electric field can be produced by the charge accumulation due to the emission of secondary and Auger electrons. Besides various beam-induced phenomena, such as nanoparticle precipitation and gas bubble formation and motion, two other effects need to be considered; one is the change of Gibbs free energy of nucleation and the other is the violation of Brownian motion due to ion drifting driven by the electric field.
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