Figure 1 | Scientific Reports

Figure 1

From: Synthesis of armchair graphene nanoribbons from the 10,10′-dibromo-9,9′-bianthracene molecules on Ag(111): the role of organometallic intermediates

Figure 1

(a) Comparison of the RT Br 3d XPS spectra from DBBA molecule on substrates with different reactivity: Au(111), Ag(111) and Cu(111). (b) Evolution of the Br 3d XPS spectrum for DBBA/Ag(111) mapped as a function of increasing sample temperature. The temperature varies from −80 °C to 200 °C. The red dashed line marks the spectrum corresponding to RT. Three regions, Reg.1, Reg.2 and Reg.3, indicate different stages of the DBBA debromination process on Ag(111) (see text for more information). The photon energy is 170 eV. For (b) the same color scale was used at all temperatures, spectra were normalised to the ring current.

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