  Acquisition and analysis is described for scanning tunneling spectroscopy
data acquired from a monolayer of WSe$_2$ grown on epitaxial graphene on SiC.
Curve fitting of the data is performed, in order to deduce band-edge energies.
In addition to describing the details of the theoretical curves used for the
fitting, the acquisition and analysis methods are also discussed within the
larger context of the historical development of scanning tunneling spectroscopy
techniques.
