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Flash Welding Polyaniline |
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Due to the high absorptivity of conducting polymers, exposure to a high photon density (such as the flash of a camera) at a close proximity causes nanofiber ICPs to melt to form a highly reflective surface. To the left is a photograph of a polyaniline emeraldine base film before (top) and after (bottom) exposure to a camera flash. This method can be used for making melt composites/films, and actuators as well as patterned materials with useful properties. |
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Artificially colored SEM cross-section of a flash welded nanofiber film showing the asymmetric structure with the melted upper layer and the nanofibular underside*
*Coloring to depict the reflective bronzy color of the flashed surface and the deep blue color of the dedoped conducting polymer nanofibers |
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