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High-resolution surface plasmon resonance imaging of an evaporating droplet on the surface.

Number: No 294

Author(s) : JEONG C. H., LEE H. J., LEE S. H.

Summary

The present study aims to investigate the characteristics of evaporating thin film (ETF) in the interfacial region during evaporation. High-resolution imaging technology was used for visualization of a sessile droplet based on the surface plasmon resonance phenomena. In particular, the influence of surface wettability on the depinning behavior and the evaporation flux near the edge of a sessile droplet was examined. To resolve the singularity problem occurring at the edge of a droplet, the current study suggests a single-valued boundary limit which can be imposed at the edge, based on the experimental data. From the result, it is found that the estimated ETF distribution shows a similar order of magnitude to the profiles predicted by the Maxwell equation. There is also little influence of droplet volume on the ETF thickness and width, indicating that interfacial phenomena in the contact line region are affected mainly by wettability, not by droplet volume.

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  • Original title: High-resolution surface plasmon resonance imaging of an evaporating droplet on the surface.
  • Record ID : 30030085
  • Languages: English
  • Subject: Technology
  • Source: 13th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
  • Publication date: 2021/08/31

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