Origin of pressure-induced band gap tuning in tin halide perovskites
Mauro Coduri, Thomas B. Shiell, Timothy A. Strobel, Arup Mahata, Federico Cova, Edoardo Mosconi, Filippo De Angelis, Lorenzo Malavasi
Abstract
Structural and optical high-pressure study of FASnBr<sub>3</sub> revealed a cubic to orthorhombic phase transition near 1.4 GPa accompanied by a huge band gap red-shift from 2.4 to 1.6 eV, which is followed by a blue-shift of ∼0.2 eV upon further pressure increase.
Topics & Concepts
HalideOrthorhombic crystal systemTinBand gapBlueshiftRed shiftMaterials sciencePhase transitionPhase (matter)Condensed matter physicsCrystallographyAnalytical Chemistry (journal)ChemistryOptoelectronicsInorganic chemistryCrystal structurePhotoluminescenceMetallurgyPhysicsGalaxyQuantum mechanicsChromatographyOrganic chemistryPerovskite Materials and ApplicationsThermal Expansion and Ionic ConductivityOrganic and Molecular Conductors Research