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AFM images and Raman measurements on 1L MoS2 nanosheets laser-treated in vacuum. (a) Optical image and (b) AFM image of laser-treated MoS2 nanosheet. Higher-magnification AFM images of each treatment locations for (c) 1 min and (d) 30 s laser treatments. (e) Raman spectra before and after the 30 s laser treatment.
