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This present work studies the effects of grain boundaries (GBs), notches and temperature on the mechanical properties of silicon (Si) nanofilms via molecular dynamics simulations. Both ∑25 (710)〈010〉 tilt and ∑25(001)〈001〉 twist GBs are considered. It is found that the single-crystalline Si nanofilm has relatively low fracture strength of ∼11.6GPa at room temperature, and fracture occurs through the...
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