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. 2019 Aug 12;9(8):1154. doi: 10.3390/nano9081154

Figure 6.

Figure 6

(a) Distribution of annealed Au particles. (b) Frontal profile of ITO (right figure shows the ITO with the preannealing process and the left exactly the opposite). (c) Surface morphology of Gr/ITO-NM/U-bent-A/0.04/20. (d–f) The absorption spectra of ITO-NM/U-bent/0.04/20, ITO-NM/U-bent-A/0.04/20, Gr/ITO-NM/U-bent-A/0.04/20 sensors in alcohol solution with RI from 1.3330 to 1.3634. (g) TEM diagram of Gr/ITO-NM/U-bent-A/0.04/20. (h) 2910 cm−1 peak mapping (20 × 20 μm2) of graphene and the insert pattern is Raman diagrams of graphene and graphene oxide on Gr/ITO-NM/U-bent-A/0.04/20 sensor. Figure S1 shows 15 groups of Raman spectra collected from different sensors. (i) The relationship between resonance wavelength and refractive index of ITO-NM/U-bent/0.04/20, ITO-NM/U-bent-A/0.04/20, and Gr/ITO-NM/U-bent-A/0.04/20.