Fig. 3
From: Electronic components embedded in a single graphene nanoribbon
STS experiments and differential conductance maps of 5/7-GNR heterojunctions. a dI/dV spectra acquired on a 5-GNR and 7-GNR segment of a 5/7-GNR(2,2) heterojunction. For comparison, a spectrum on a three monomer long pure 5-GNR is shown in green. Curves are vertically offset for clarity. Inset: STM topograph of the 5/7-GNR(2,2) heterojunction and neighboring pure 5-GNR (V = 0.1 V, I = 200 pA). b Experimental (left) and simulated (right) constant height dI/dV maps recorded at V = −0.8 V (top) and 50 mV (bottom), respectively. c dI/dV spectra acquired on a 5/7/5-GNR(2,1,2) heterostructure. Curves are vertically offset for clarity. Inset: STM topograph of the 5/7/5-GNR(2,1,2) heterojunction (V = 0.1 V, I = 500 pA). d Experimental (left) and simulated (right) constant-height dI/dV maps at V = 1.5 V (top), V = 0.1 V (middle), and V = −1.0 V (bottom), respectively. e dI/dV spectra acquired on a 5/7/5-GNR(2,3,2) heterostructure. Curves are vertically offset for clarity. Inset: STM topograph of the 5/7/5-GNR(2,3,2) heterojunction (V = 0.1 V, I = 100 pA). f Experimental (left) and simulated (right) constant-height dI/dV maps at V = 2.0 V, 1.1 V, 0.1 V, and −0.7 V, respectively
