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. 2016 Nov 29;6:37833. doi: 10.1038/srep37833

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Copyright © 2016, The Author(s)

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(a) The as-grown type B WS₂ film on 2-inch sapphire wafer; (b) separated polystyrene polymer-coated WS₂ film floated on water; (c) 2-inch WS₂ thin film transferred to a four inch SiO₂/Si wafer without observable wrinkles, cracks and polymer residues; and (d) optical image of WS₂ after being transferred to the SiO₂.