Stress-transfer from polymer substrates to monolayer and few-layer graphenes.

This is quite significant since the overall loaded area is of the order of ∼60 × 8 = 480 μm 2 which is much larger than that in any such experiments reported earlier by us 20 or others 23 and shows once more than the crystal perfection of graphene is retained at much higher length scales than envisaged earlier.

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