DOE OSTI2019From 0D Cs[subscript 3]Bi[subscript 2]I[subscript 9] to 2D Cs[subscript 3]Bi[subscript 2]I[subscript 6]Cl[subscript 3]: Dimensional Expansion Induces a Direct Band Gap but Enhances Electron-Phonon CouplingAbstract not providedMcCall, Kyle M.↗