Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 131, Issue 15, Pages 5396-+Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja900130n
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Funding
- U.S. Department of Energy [DE-AC02-05CH11231]
- National Institute of General Medical Sciences [F32GM078780]
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As energy demands increase, new, more direct, energy collection and utilization processes must be explored. We present a system that intrinsically combines the absorption of sunlight. with the production of useful work in the form of locomotion of objects on liquids. Focused sunlight is locally absorbed by a nanostructured composite, creating a thermal surface tension gradient and, subsequently, motion. Controlled linear motion and rotational motion are demonstrated. The system is scale independent, with remotely powered and controlled motion shown for objects in the milligram to tens of grams range.
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