Journal
APPLIED PHYSICS LETTERS
Volume 103, Issue 17, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4826923
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Funding
- Australian Research Council [DE120101402]
- Australian Research Council [DE120101402] Funding Source: Australian Research Council
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We demonstrate photochemically induced actuation of liquid metal marbles, which are liquid metal droplets encased in micro/nanoparticles. The WO3 nanoparticles coated marbles are placed in H2O2 solution, and their surfaces are illuminated with UV light. The semiconducting WO3 coating behaves as a photocatalyst to trigger a photochemical reaction, generating oxygen bubbles that propel the marble. The actuation of the marbles is investigated under different H2O2 concentrations, light intensities, and marble dimensions. Equations describing the fundamentals of such actuations are presented. (C) 2013 AIP Publishing LLC.
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