Plasmonic Bubble Nucleation in Binary Liquids
Plasmonic Bubble Nucleation in Binary Liquids
复制标题
二元液体中的等离子体气泡成核
DOI：
10.1021/acs.jpcc.9b10064
复制
发表时间：
2020-01-30
影响因子：
3.7
通讯作者：
Lohse, Detlef
中科院分区：
文献类型：
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作者：
Detert, Marvin;Zeng, Binglin;Lohse, Detlef
金属纳米粒子在激光照射下，由于表面等离子体共振而产生巨大的热。当浸入液体中时，这可能会导致等离子体气泡的成核。在非常早期的阶段，用超高速相机观测到了巨型汽泡的成核过程。在这项研究中，我们研究了金纳米颗粒在六种二元液体组合中形成的巨大气泡。我们发现，从激光加热开始到气泡成核之间的时间延迟由液体中溶解气体的绝对量决定。此外，气泡体积主要取决于液体的汽化能，包括汽化潜热和达到沸腾温度所需的能量。我们的结果有助于控制初始的巨型气泡成核，并对这种气泡的应用有很大的影响。
Metal nanoparticles under laser irradiation can produce enormous heat due to surface plasmon resonance. When submerged in a liquid, this can lead to the nucleation of plasmonic bubbles. In the very early stage, the nucleation of a giant vapor bubble was observed with an ultrahigh-speed camera. In this study, the formation of this giant bubble on gold nanoparticles in six binary liquid combinations has been investigated. We find that the time delay between the beginning of the laser heating and the bubble nucleation is determined by the absolute amount of dissolved gas in the liquid. Moreover, the bubble volume mainly depends on the vaporization energy of the liquid, consisting of the latent heat of vaporization and the energy needed to reach the boiling temperature. Our results contribute to controlling the initial giant bubble nucleation and have strong bearings on applications of such bubbles.