Celeritas XS allows 4D STEM mapping of molecular orientations in glass

Prof. Paul Voyles and researchers at the University of Wisconsin Madison in the USA have published new results acquired using a Celeritas XS detector in Nano Letters.

The detector’s rapid acquisition speed and sensitivity allowed them to record a low-dose electron diffraction pattern at every probe position whilst scanning the electron probe across a thin molecular glass film, without disrupting the structure of the specimen through radiation damage.

This allowed them to map and compare the orientations of molecules at nanometer-scale resolution in molecular glasses synthesized at different temperatures.

The paper can be found at the link below:

https://pubs.acs.org/doi/10.1021/acs.nanolett.3c00197

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