Citation: Jana, Manoj K.; Janke, Svenja M.; Dirkes, David J.; Dovletgeldi, Seyitliyev; Liu, Chi; Qin, Xixi; Gundogdu, Kenan; You, Wei; Blum, Volker; Mitzi, David B. (2019). Direct-Bandgap 2D Silver-Bismuth Iodide Double Perovskite: The Structure-Directing Influence of an Oligothiophene Spacer Cation.. Journal of the American Chemical Society, 141, pp. 7955-7964.