Mechanical & Materials Engineering, Department of
Document Type
Article
Date of this Version
2015
Citation
ACS Appl. Mater. Interfaces 2015, 7, 10125−10131
DOI: 10.1021/am5087215
Abstract
Dynamic morphing of marine species to match with environment changes in color and texture is an advanced means for surviving, self-defense, and reproduction. Here we use colloids that are placed inside a multilayered structure to demonstrate color and texture morphing. The multilayer is composed of a thermal insulating base layer, a light absorbing mid layer, and a liquid top layer. When external light of moderate intensity (∼0.2 W cm−2) strikes the structure, colloids inside the liquid layer will be assembled to locations with an optimal absorption. When this system is exposed to continuous laser pulses, more than 18 000 times of reversible responses are recorded, where the system requests 20 ms to start the response and another 160 ms to complete. The flexibility of our concept further allows the system to be built on a variety of light-absorbing substrates, including dyed paper, gold thin film, and amorphous silicon, with the top layer even a solid.
There are 8 supplemental files attached (below): 1 .pdf, 1 .mp4, 6 .avi.
Chen ACSAMI 2015 Color and Texture Morphing SUPPL 2.mp4 (6019 kB)
Chen ACSAMI 2015 Color and Texture Morphing SUPPL 3.avi (8167 kB)
Chen ACSAMI 2015 Color and Texture Morphing SUPPL 4.avi (7551 kB)
Chen ACSAMI 2015 Color and Texture Morphing SUPPL 5.avi (1065 kB)
Chen ACSAMI 2015 Color and Texture Morphing SUPPL 6.avi (13848 kB)
Chen ACSAMI 2015 Color and Texture Morphing SUPPL 7.avi (1488 kB)
Chen ACSAMI 2015 Color and Texture Morphing SUPPL 8.avi (8138 kB)
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Mechanics of Materials Commons, Nanoscience and Nanotechnology Commons, Other Engineering Science and Materials Commons, Other Mechanical Engineering Commons
Comments
This is an open access article published under an ACS AuthorChoice License