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Demonstration of temperature-plateau superheated liquid by photothermal conversion of plasmonic titanium nitride nanostructures

Abstract

Liquid can be heated up above its boiling point, known as superheating. In this metastable state, the liquid temperature keeps increasing as the liquid is being heated. In contrast, we experimentally demonstrate that the temperature of superheated water can be kept constant even at elevated heating power. Water heating is done by the photothermal conversion of plasmonic titanium nitride nanostructures on a sapphire substrate under the illumination of continuous wave laser irradiation. The temperature-constant superheating is also observed for ethylene glycol and 2-acetoxy-1-methoxypropane, and is attributed to high thermal conductivity of the substrate. This unique superheating yet achieved by a simple method can be useful in optical trapping and various optical heating applications.

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Publication details

The article was received on 23 Jul 2018, accepted on 12 Sep 2018 and first published on 13 Sep 2018


Article type: Communication
DOI: 10.1039/C8NR05931D
Citation: Nanoscale, 2018, Accepted Manuscript
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    Demonstration of temperature-plateau superheated liquid by photothermal conversion of plasmonic titanium nitride nanostructures

    S. Ishii, R. Kamakura, H. Sakamoto, T. D. Dao, S. L. Shinde, T. NAGAO, K. Fujita, K. Namura, M. Suzuki, S. Murai and K. Tanaka, Nanoscale, 2018, Accepted Manuscript , DOI: 10.1039/C8NR05931D

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