Fig. 4
From: Selective self-assembly of 2,3-diaminophenazine molecules on MoSe2 mirror twin boundaries

Model of DAP porous configurations on MoSe2 surface. a High-resolution STM image (15 × 15 nm2; VS = 1.7 V, I = 60 pA) of DAP porous structure on MoSe2. b Schematic of the DAP molecular configuration described in a. The red triangle shows a typical triangle trimer configuration (T-type) in e, and the green circle shows the linear configuration (L-type) of DAP molecules in f. c A close-up STM image (Size: 8 × 8 nm2) of a prototypical DAP pore. d The atomic configuration of a typical DAP hexagonal pore on the top of a wagon-wheel pattern. The red triangle highlights the T-type trimer configuration, which act as the corner of the hexagonal pores. Here, the binding energy per DAP molecule in trime (e) or linear (f) configuration is defined by \(\Delta {\boldsymbol{E}}_{{\mathbf{bind}}} = \left( {{\boldsymbol{E}}_{{\mathbf{total}}} - 3{\boldsymbol{E}}_{{\mathbf{single}}\,{\mathbf{DAP}}}} \right)/3\)