Temperature oscillations during photoinduced heating of aqueous suspensions of silicon nanoparticles

Temperature oscillations (pulsations) were detected in aqueous suspensions of silicon (Si) nanoparticles NPs under laser irradiation with highly absorbed light. The temperature pulsation frequency was found to depend on the NPs concentration in suspension and laser irradiation power. The observed ph...

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Bibliographic Details
Published in:Journal of physics. Conference series 2021-10, Vol.2058 (1), p.12032
Main Authors: Belov, V S, Bobkov, E A, Oleschenko, V A, Kabashin, A V, Timoshenko, V Yu
Format: Article
Language:English
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Summary:Temperature oscillations (pulsations) were detected in aqueous suspensions of silicon (Si) nanoparticles NPs under laser irradiation with highly absorbed light. The temperature pulsation frequency was found to depend on the NPs concentration in suspension and laser irradiation power. The observed phenomenon is assumed to be caused by the local overheating of Si NPs close to the boiling point of water, while the average heating of the surrounding liquid was insignificant. The observed phenomenon is discussed in view of potential applications in local photo-induced hyperthermia of cancer.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2058/1/012032