Fig. 3.

STM and theoretical studies of the 2D PANI structure. (A) STM image of a 2D PANI framework (2.5 × 2.5 nm², Vs. = −1.1V, I_t = 1.0 nA). Inset structure represents C₃N repeating unit with carbon atom (gray ball) and nitrogen atom (blue ball). (B) Topographic height profile along the cyan dot line marked in A. (C) Differential conductance (dI/dV) spectrum of a 2D PANI framework. (D) Simulated STM image with superimposed structure of C₃N repeating unit. (E) Electronic band structure. (F) PDOS of the carbon (dark red) and nitrogen (dark blue) atoms.