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Published June 10, 2015 | Published
Journal Article Open

Compressible Viscoelastic Liquid Effects Generated by the Breathing Modes of Isolated Metal Nanowires

Abstract

Transient absorption microscopy is used to examine the breathing modes of single gold nanowires in highly viscous liquids. By performing measurements on the same wire in air and liquid, the damping contribution from the liquid can be separated from the intrinsic damping of the nanowire. The results show that viscous liquids strongly reduce the vibrational lifetimes but not to the extent predicted by standard models for nanomaterial–liquid interactions. To explain these results a general theory for compressible viscoelastic fluid–structure interactions is developed. The theory results are in good agreement with experiment, which confirms that compressible non-Newtonian flow phenomena are important for vibrating nanostructures. This is the first theoretical study and experimental measurement of the compressible viscoelastic properties of simple liquids.

Copyright and License

© 2015 American Chemical Society.

Acknowledgement

This work was supported by the United States National Science Foundation (CHE-1110560), the Office of Naval Research (Award No. N00014-12-1-1030), and the University of Notre Dame Strategic Research Initiative. The authors gratefully acknowledge support of the Australian Research Council Grants Scheme.

Conflict of Interest

The authors declare no competing financial interest.

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Additional details

Created:
October 11, 2023
Modified:
October 11, 2023