Extended Data Fig. 2: Two standing PTCDA molecules.
From: A standing molecule as a single-electron field emitter
a, Constant-current STM image of two PTCDA + 2Ag complexes that were assembled in the same way as shown in Fig. 1b. b, AFM image of the standing molecules, recorded at tip height of z = 17.5 Å above the surface (left). One of the standing molecules is then moved closer to the other by the lateral manipulation procedure demonstrated in Extended Data Fig. 3a (right).
