Figure 6: Photoconducting response of the intramolecular junction.

(a) Ip response of the SWNT/GNR junction (at Vsd=0 V) when the global laser beam is switched on and off. (b) Schematic band diagram at the junction under irradiation. (c,d) Ip (at Vsd=0 V) and Vp (at Isd=0 A) response when the laser beam focused on the SWNT/GNR junction was switched on and off. (a, c and d) SWNT was grounded, Vsd, Ip or Vp were applied or measured on GNR. CB, conductive band.