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. Author manuscript; available in PMC: 2020 Dec 11.
Published in final edited form as: Nano Lett. 2019 Nov 25;19(12):8605–8611. doi: 10.1021/acs.nanolett.9b03180

Figure 1.

Figure 1

a) Schematics of the experimental set-up, in which the STM and ncAFM signals are collected together with electroluminescence signal on single ZnPc molecules, electronically decoupled from a metal substrate by an insulating NaCl layer. For this purpose, a CO-functionalized tip is used (shown in the inset). Applied current/bias leads to a configuration switching of the adsorption position of the molecule (inset). b) STM constant-current image of rotating and stable ZnPc molecules on the surface of trilayer NaCl on Ag(111) surface, with an example luminescence spectrum in the inset. The 23 x 23 nm2 image was taken at -2.2 V, 5 pA. c) Telegraphic noise recorded on a rotating ZnPc at 1.0 V, 6 pA.