Fig. 1: Scheme for reconfigurable nano-kirigami.
From: Electromechanically reconfigurable optical nano-kirigami
a, b Schematic of a a 2D pinwheel array and b its downward 3D state under attractive electrostatic forces when the voltage is on. Each gold pinwheel is locally suspended by four SiO2 supporters with thickness of d. c A simplified electromechanical model of the reconfigurable nano-kirigami, in which the displacement of the suspended nanostructure is controlled by the downward electrostatic force (Fe) and upward mechanical restoring force (Fr). d Front-view and side-view plots of (top) 2D and (bottom) calculated 3D deformed pinwheel in the gold layer. e, f Side-view SEM images of as-fabricated 2D pinwheels and the downward deformed 3D pinwheels after applying DC voltage of V = 65 V. Structural parameters: gold thickness: t = 60 nm; pinwheel width: w = 2 µm; lattice periodicity: p = 2.25 µm; d = 500 nm. Scale bars: 1 µm.
