Adsorption of SPMs on Surfaces

With the recent surge in surface analysis techniques, the characterization of surface-adsorbed SPMs has blossomed. This is particularly tme for the use of scanning tunneling microscopy (STM), where the conjugated core of the SPM is expected to show a higher tunneling efficiency than nonconjugated portions (e.g., 

156 and 157 [120] (E) Short-range ordering at solution/HOPG interface of SPM 156 from top view and 3D side view (F) Short-range ordering at the solution/HOPG interface for SPM 

157 [121] Both images reprinted with permission from E. Mena-Osteritz, P. Bauerle, Adv. Mater. 2001, 13, 243-246. 

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