Fig. 3: Sensitivity to atomic defects.
From: Fluorescence from a single-molecule probe directly attached to a plasmonic STM tip
a Constant height STML spectra (V = 2.3 V, t = 1 min per spectrum) of a PTCDA tip acquired at different lateral distances (see dots in b) from a defect on 2 ML NaCl. b STM image (I = 5 pA, V = − 0.5 V) of the defect acquired with a metal tip. Source data are provided as a Source Data file.
