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Photograph (a) and optical microscope image (b) of few-layer graphite films on glass slide and wafer, respectively. The size of the FLG film in (a) is about . (c) Typical Raman spectrum of FLG film taken from (b). , , and bands were detected at 1350, 1582, and , respectively. Silicon peaks can also be seen in the spectra at and .
SEM image (a) of FLG on SiN support membranes and HRTEM images of sample Cu-900 (b) and Ni-950 (c). The inset of (c) shows the high magnification image taken on the square region.
(a) Plots of sheet resistance as a function of transmittance at 550 nm, in comparison with other TCF. ×: FLG (see Ref. 11); : reduced graphene oxide (see Ref. 6); and ◻: reduced graphene oxide (see Ref. 5) from references. (b) The transmittance of Cu-900 as a function of incidence angle.
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