Cs<sub>2</sub>NaGaBr<sub>6</sub>: a new lead-free and direct band gap halide double perovskite
Y. Saeed, B. Amin, Haleema Khalil, Fida Rehman, Hazrat Ali, Muhammad Imtiaz Khan, Asif Mahmood, Muhammad Shafiq
Abstract
In this work, we have studied new double perovskite materials, A<sub>2</sub><sup>1+</sup>B<sup>2+</sup>B<sup>3+</sup>X<sub>6</sub><sup>1−</sup>, where A<sub>2</sub><sup>1+</sup> = Cs, B<sup>2+</sup> = Li, Na, B<sup>3+</sup> = Al, Ga, In, and X<sub>6</sub><sup>1−</sup>.
Topics & Concepts
HalidePerovskite (structure)Direct and indirect band gapsBand gapLead (geology)Materials scienceChemistryOptoelectronicsInorganic chemistryCrystallographyGeologyGeomorphologyPerovskite Materials and ApplicationsSolid-state spectroscopy and crystallographyThermal Expansion and Ionic Conductivity