Figure 1. Fabrication of a highly conductive and stretchable nanomembrane using a float assembly method (IMAGE)
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(A) The fabrication begins with the injection of the nanocomposite solution onto the water. The solution consists of nanomaterials (NW), water-insoluble elastomer (SEBS) dissolved in a water-immiscible solvent (toluene), and ethanol. (B) The mass of the nanocomposite solution spreads out along the water surface due to Marangoni flow, resulting in the monolayer assembly of NWs. (C) The assembled composite solution covers the entire water surface after the solution injection process. (D) A few drops of the surfactant are added at the center. (E) The surfactant pushes the mass (i.e., NWs, elastomer, and solvent) outward. The solvent evaporates shortly at room temperature. (F) A monolayer of assembled NWs partially embedded in an ultrathin elastomer matrix is left on the water.
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Institute for Basic Science
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