Sessile droplet evaporation on the surface of a liquid metal

Wang, Xiling; Liu, Lu; Zhao, Lutong; Huang, Yizhou; Dong, Xinyu; Yang, Xueming

doi:10.1039/d2nj02505a

New J. Chem.

2022

DOI: 10.1039/d2nj02505a

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Sessile droplet evaporation on the surface of a liquid metal

Xiling Wang

Lu Liu

Lutong Zhao

et al.

Abstract: Sessile droplet evaporation on liquid gallium surface is reported. Liquid gallium has super smooth flexible surface, but it is easy to form oxide film in ambient air. Two methods were...

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2024

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Evaporation Dynamics on a Lithium Niobate Surface

Vinikumar,

Schönecker

2024

ChemPhysChem

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Manipulating water evaporation dynamics is a prerequisite in various modern‐day applications like DNA stretching, rapid disease diagnostics, and inkjet printing. One method to affect the evaporation dynamics of droplets is to externally apply electric fields. However, surfaces that bear an intrinsic surface charge have not yet been investigated with respect to their evaporation behavior. In this study, we investigate water droplet evaporation on lithium niobate (LN), a ferroelectric material with a very high spontaneous polarization of 0.7 C/m2. Our results show that a droplet deposited on a LN surface evaporates in three stages: (i) constant contact radius (ii) mixed phase (iii) stick‐slip, which is likely originating from the intrinsic surface charge. The influences of the polarization direction of the LN surface as well as the relative humidity of the environment on various evaporation characteristics were studied. The results suggest that the specific adsorption layers forming on charged surfaces, e.g. from the humidity of the surrounding air, play a key role in the evaporation process. Furthermore, compared to other materials with similar contact angles, LN demonstrated a significantly large evaporation rate. This property might also be attributed to the intrinsic surface charge and could be exploited in heat transfer applications.

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Evaporation Dynamics on a Lithium Niobate Surface

Vinikumar,

Schönecker

2024

ChemPhysChem

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Sessile droplet evaporation on the surface of a liquid metal

Abstract: Sessile droplet evaporation on liquid gallium surface is reported. Liquid gallium has super smooth flexible surface, but it is easy to form oxide film in ambient air. Two methods were...

Cited by 1 publication

References 34 publications

Evaporation Dynamics on a Lithium Niobate Surface

Evaporation Dynamics on a Lithium Niobate Surface

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