Structure modulation for bandgap engineered vacancy-ordered Cs<sub>3</sub>Bi<sub>2</sub>Br<sub>9</sub> perovskite structures through copper alloying
Amr Elattar, Libor Kobera, Jiban Kangsabanik, Hiroo Suzuki, Sabina Abbrent, Takeshi Nishikawa, Kristian S. Thygesen, Jiřı́ Brus, Yasuhiko Hayashi
Abstract
Light absorption enhancement was achieved through structure modulation of the Cs 3 Bi 2 Br 9 perovskite crystal via Cu-alloying. The Cs 3 Bi 2 Br 9 perovskite retains its matrix structure with homogeneously distributed Cs 2 CuBr 4 large domains.
Topics & Concepts
Materials sciencePerovskite (structure)CopperVacancy defectBand gapModulation (music)CrystallographyOptoelectronicsMetallurgyChemistryAestheticsPhilosophyPerovskite Materials and ApplicationsThermal Expansion and Ionic ConductivitySolid-state spectroscopy and crystallography