(HPy)<sub>2</sub>(Py)CuBi<sub>3</sub>I<sub>12</sub>, a low bandgap metal halide photoconductor
Jakob Möbs, Marina Gerhard, Johanna Heine
Abstract
Bismuth halides represent an emergent class of materials that combines semiconductor properties with non-toxic constituents. However, many simple bismuth halide compounds feature bandgaps that are significantly higher than those of the lead halide perovskites, which they are supposed to replace. One way to address this issue is the preparation of multinary metal halide materials that feature an additional metal ion. Here, we report on the synthesis and properties of (HPy)2(Py)CuBi3I12 (1) a new copper iodido bismuthate, a photoconductor, which shows a low band gap of 1.59 eV and good thermal and air stability.
Topics & Concepts
HalideBand gapMaterials scienceMetalCrystallographyOptoelectronicsChemistryInorganic chemistryMetallurgyPerovskite Materials and ApplicationsInorganic Chemistry and MaterialsQuantum Dots Synthesis And Properties