Plasmonic Microbubble Dynamics in Binary Liquids
| Autor: | Binglin Zeng, Harold J.W. Zandvliet, Marvin Detert, Andrea Prosperetti, Xiaolai Li, Yuliang Wang, Detlef Lohse |
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| Přispěvatelé: | Physics of Fluids, Physics of Interfaces and Nanomaterials |
| Rok vydání: | 2021 |
| Předmět: |
Letter
Materials science Bubble UT-Hybrid-D Nanoparticle FOS: Physical sciences 02 engineering and technology Condensed Matter - Soft Condensed Matter 010402 general chemistry 01 natural sciences law.invention law Phase (matter) General Materials Science Laser power scaling Physical and Theoretical Chemistry Plasmon Fluid Dynamics (physics.flu-dyn) Physics - Fluid Dynamics 021001 nanoscience & nanotechnology Laser 0104 chemical sciences Chemical physics Microbubbles Continuous wave Soft Condensed Matter (cond-mat.soft) 0210 nano-technology |
| Zdroj: | The Journal of Physical Chemistry Letters The journal of physical chemistry letters, 11(20), 8631-8637. American Chemical Society |
| ISSN: | 1948-7185 |
| DOI: | 10.48550/arxiv.2101.00219 |
| Popis: | The growth of surface plasmonic microbubbles in binary water/ethanol solutions is experimentally studied. The microbubbles are generated by illuminating a gold nanoparticle array with a continuous wave laser. Plasmonic bubbles exhibit ethanol concentration-dependent behaviors. For low ethanol concentrations (f_e) of < 67.5%, bubbles do not exist at the solid-liquid interface. For high f_e values of >80%, the bubbles behave as in pure ethanol. Only in an intermediate window of 67.5% < f_e < 80% do we find sessile plasmonic bubbles with a highly nontrivial temporal evolution, in which as a function of time three phases can be discerned. (1) In the first phase, the microbubbles grow, while wiggling. (2) As soon as the wiggling stops, the microbubbles enter the second phase in which they suddenly shrink, followed by (3) a steady reentrant growth phase. Our experiments reveal that the sudden shrinkage of the microbubbles in the second regime is caused by a depinning event of the three phase contact line. We systematically vary the ethanol concentration, laser power, and laser spot size to unravel water recondensation as the underlying mechanism of the sudden bubble shrinkage in phase 2. 7 pages,4 figures |
| Databáze: | OpenAIRE |
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