Fig. 7: Electronic properties of Py-7-AGNRs. | Communications Chemistry

Fig. 7: Electronic properties of Py-7-AGNRs.

From: Preferential graphitic-nitrogen formation in pyridine-extended graphene nanoribbons

Fig. 7

a STM (left) and nc-AFM (right) image of a Py-7-AGNR with graphitic-N edges. Two pyridinic-N defects are labeled by green arrows. (scale bar: 1 nm, scanning parameters:−1.5 V, 100 pA). b dI/dV spectra on different points (see a). (Open feedback parameters: −1.5 V, 200 pA; Vrms: 20 mV) (c) STM (left) and nc-AFM (right) of another Py-7-AGNR segment without pyridinic-N defects. d dI/dV maps at selected bias voltages of the Py-7-AGNR shown in (c). e Simulated DOS maps of the singly charged system shown in Fig. 6a, evaluated at the different k-points of the corresponding bands.

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