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Abstract
In the present work we observe that helium nanodroplets colliding with surfaces can exhibit splashing in a way that is analogous to classical liquids. We use transmission electron microscopy and mass spectrometry to demonstrate that neutral and ionic dopants embedded in the droplets are efficiently backscattered in such events. High abundances of weakly bound He-tagged ions of both polarities indicate a gentle extraction mechanism of these ions from the droplets upon collision with a solid surface. This backscattering process is observed for dopant particles with masses up to 400 kilodaltons, indicating an unexpected mechanism that effectively lowers deposition rates of nanoparticles formed in helium droplets.
Publication Date
12-23-2021
Journal Title
Physical Review Letters
Language
English
Publisher
American Physical Society
Digital Object Identifier (DOI)
Document Type
Article
Recommended Citation
P. Martini, S. Albertini, F. Laimer, M. Meyer, M. Gatchell, O. Echt, F. Zappa, and P. Scheier, Phys. Rev. Lett. 127 (2021) 263401
Rights
© 2021 American Physical Society
Included in
Atomic, Molecular and Optical Physics Commons, Fluid Dynamics Commons, Physical Chemistry Commons
Comments
This is a preprint of an article published by American Physical Society in Physical Review Letters in 2021, available online: https://dx.doi.org/10.1103/PhysRevLett.127.263401