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. 2021 Jan 30;24(2):102121. doi: 10.1016/j.isci.2021.102121

Figure 7.

Figure 7

The large-area preparation of CPCs via roll-to-roll methods

(A) Schematic illustration of the roll-to-roll printing. Reprinted with permission from Højlund-Nielsen et al. (2016). Copyright 2016, John Wiley & Sons, Inc.

(B) Schematic illustration of the large-scale polymer opals (POs) film with bending-induced oscillatory shear (BIOS) technique.

(C) Mechanism of BIOS inside the PET-PO-PET (PET: polyethylene glycol terephthalate) sandwich, dashed white lines show the bending-induced deformation in different layers.

(D) PO film after the BIOS (left) with improved sphere packing (right), arrow indicates shear direction. Inset SEM image shows the hcp packing at the surface. Reprinted with permission from Zhao et al. (2016). Copyright 2016, Springer Nature.