Band gap evolution in Ruddlesden-Popper phases

We investigate the variation of the band gap across the Ruddlesden-Popper (RP) series $({\\mathrm{A}}_{n+1}{\\mathrm{B}}_{n}{\\mathrm{X}}_{3n+1})$ in model chalcogenide, oxide, and halide materials to understand the factors influencing the band gap evolution with $n$. In contrast to the oxides and halides, we find the band gaps of the cha...More