Surface tension mediated conversion of light to work
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United States of America Patent
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Dec 2, 2014
Grant Date -
Nov 10, 2011
app pub date -
Mar 22, 2011
filing date -
Mar 25, 2010
priority date (Note) -
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Abstract
Disclosed are a method and apparatus for converting light energy to mechanical energy by modification of surface tension on a supporting fluid. The apparatus comprises an object which may be formed as a composite object comprising a support matrix and a highly light absorptive material. The support matrix may comprise a silicon polymer. The highly light absorptive material may comprise vertically aligned carbon nanotubes (VANTs) embedded in the support matrix. The composite object is supported on a fluid. By exposing the highly light absorptive material to light, heat is generated, which changes the surface tension of the composite object, causing it to move physically within the fluid.
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