(Color online) Dual step hot-embossing process of complex structure.
(Color online) SEM and optical images of micro/nanostructure on P(VDF-TrFE) thin film. (a) and (b) present SEM images of grating and rounded square structures made by one step hot-embossing, respectively. (c) shows the optical image of the complex structure made by dual step hot-embossing. (d) indicates the SEM image of the complex structure. All of them were created at 137 °C.
(Color online) 2D (a) and 3D (b) AFM topographies of P(VDF-TrFE) thin film with the complex nanostructure. (c) and (d) indicate the height profiles along the lines across the rounded square and the grating feature, respectively.
(Color online) Ferroelectric hysteresis loops (a) and butterfly loops (b) of P(VDF-TrFE) thin film measured by PFM after one-step and two-step hot-embossing process, respectively.
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