Plasmonic Nanofluids: Enhancing Photothermal Gradients toward Liquid Robots.

ABSTRACT: In situ energy generation in soft, flexible, autonomous devices is challenging due to the need for highly stretchable and fault-resistant components. Nanofluids with pyro-, tribo-, or thermoelectric properties have recently emerged as promising solutions for realizing liquid-based energy harvesters. Yet, large thermal gradients are required for the efficient performance of these systems. In this work, we show that oil-based plasmonic nanofluids uniquely combine high photothermal efficiency with strong heat localization. In particular, we report that oleic acid-based nanofluids containing TiN nanoclusters (0.3 wt %) exhibit 89% photothermal efficiency and can realize thermal gradients as large as 15.5 K/cm under solar irradiation. We experimentally and numerically investigate the phototherm

SUBMITTER: Bevione M 

PROVIDER: S-EPMC10623507 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature