Periodic bouncing of a plasmonic bubble in a binary liquid by competing solutal and thermal Marangoni forces
| Autor: | Christian Diddens, Kai Leong Chong, Harold J.W. Zandvliet, Detlef Lohse, Xiaolai Li, Marvin Detert, Yuliang Wang, Binglin Zeng |
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| Přispěvatelé: | Physics of Fluids, MESA+ Institute, Physics of Interfaces and Nanomaterials |
| Rok vydání: | 2021 |
| Předmět: |
Phase transition
Multidisciplinary Marangoni effect Materials science binary liquids 76-05 Bubble Nucleation Fluid Dynamics (physics.flu-dyn) Phase transisition FOS: Physical sciences Mechanics Physics - Fluid Dynamics Marangoni force plasmonic bubbles Condensed Matter::Soft Condensed Matter Physics::Fluid Dynamics Temperature gradient bubble bouncing phase transition Boiling Vaporization Thermal Physical Sciences |
| Zdroj: | Proc Natl Acad Sci U S A Proceedings of the National Academy of Sciences of the United States of America, 118(23):e2103215118. National Academy of Sciences PNAS |
| ISSN: | 1091-6490 0027-8424 |
| Popis: | The physicochemical hydrodynamics of bubbles and droplets out of equilibrium, in particular with phase transitions, displays surprisingly rich and often counterintuitive phenomena. Here we experimentally and theoretically study the nucleation and early evolution of plasmonic bubbles in a binary liquid consisting of water and ethanol. Remarkably, the submillimeter plasmonic bubble is found to be periodically attracted to and repelled from the nanoparticle-decorated substrate, with frequencies of around a few kHz. We identify the competition between solutal and thermal Marangoni forces as origin of the periodic bouncing. The former arises due to the selective vaporization of ethanol at the substrate's side of the bubble, leading to a solutal Marangoni flow towards the hot substrate, which pushes the bubble away. The latter arises due to the temperature gradient across the bubble, leading to a thermal Marangoni flow away from the substrate which sucks the bubble towards it. We study the dependence of the frequency of the bouncing phenomenon from the control parameters of the system, namely the ethanol fraction and the laser power for the plasmonic heating. Our findings can be generalized to boiling and electrolytically or catalytically generated bubbles in multicomponent liquids. Comment: 12 pages, 3 figures |
| Databáze: | OpenAIRE |
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