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The extraordinary mechanical properties of 2D TMDCs make them ideal candidates for investigating strain-induced control of physical properties. Here we explore the role of non-uniform strain in modulating optical, electronic and transport properties of semiconducting, chemical vapour deposited monolayer MoS2 draped over perriodically nanostructured substrates. A combination of spatially resolved spectroscopic and electronic properties explore the differential strain distribution and carrier density in a monolayer, as it conformally drapes over the periodic nanostructures. The observed accumulation in electron density at the strained regions is supported by theoretical calculations, which form the likely basis for the ensuing ×60 increase in field effect mobility in strained samples. Though spatially non-uniform, the pattern induced strain is shown to be readily controlled by changing the periodicity of the nanostructures thus providing a robust yet useful macroscopic control on strain and mobility in these systems. |