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Fig. 2 | Nanoscale Research Letters

Fig. 2

From: Transmission Properties of FeCl3-Intercalated Graphene and WS2 Thin Films for Terahertz Time-Domain Spectroscopy Applications

Fig. 2

Raman spectra of graphene-based samples under study. Raman spectra of the different graphene samples on glass a and different substrates b performed using a 532-nm laser excitation system with a ×40 microscope objective, and 10 s integration time for a single scan. c shows the splitting of the G peak into 3 peaks in a i-FLG sample. As previously reported, the Raman shift of G to G0, G1 and G2 stem for a graphene sheet with randomly distributed FeCl3 molecules, one or two adjacent FeCl3 layers as shown by the schematic crystal structure

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