Surface tension mediated conversion of light to work.

Surface tension mediated conversion of light to work.
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DOI:
10.1021/ja900130n
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发表时间:
2009-04-22
影响因子:
15
通讯作者:
Fréchet JM
Fréchet JM
中科院分区:
化学1区
文献类型:
--
作者:
Okawa D;Pastine SJ;Zettl A;Fréchet JM

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随着能源需求的增加,必须探索新的、更直接的能源收集和利用过程。我们提出了一个系统,本质上结合了吸收阳光与生产有用的工作的形式的运动的液体上的物体。聚焦的阳光被纳米结构复合材料局部吸收,产生热表面张力梯度,随后产生运动。控制线性运动和旋转运动的演示。该系统是规模独立的,远程供电和控制的运动显示的对象在毫克到几十克的范围。
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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