Uniaxial Strain on Graphene: Raman Spectroscopy Study and Band-Gap Opening
Uniaxial Strain on Graphene: Raman Spectroscopy Study and Band-Gap Opening
Graphene was deposited on a transparent and flexible substrate, and tensile strain up to ∼0.8% was loaded by stretching the substrate in one direction. Raman spectra of strained graphene show significant red shifts of 2D and G band (−27.8 and −14.2 cm−1 per 1% strain, respectively) because of the elongation …