  Graphene intercalation materials are potentially promising for the
implementation of the ultra-low power, excitonic-condensate-based Bilayer
pseudoSpin Field-Effect Transistor (BiSFET) concept, as well as other novel
device concepts requiring a graphene interlayer dielectric. Using density
functional theory (DFT) we study the structural and electronic properties of
bilayer graphene intercalated with iodine monochloride (ICl) and iodine
monobromide (IBr). We determine the structural configuration of ICl and IBr
graphene intercalation compounds (GICs). We also conduct an in-depth
exploration of inter-layer electronic coupling, using \textit{ab initio}
calculations. The presence of intercalants dopes the graphene layer. It also
reduces, but does not eliminate, the electronic coupling between graphene
layers, which may enable BiSFET operation. In addition, we present experimental
results for ICl-GIC synthesis and characterization.
