On the Luminescence of Cs3Bi2Br9 Single Crystals
- 1 August 1981
- journal article
- research article
- Published by Wiley in Physica Status Solidi (b)
- Vol. 106 (2) , 647-655
- https://doi.org/10.1002/pssb.2221060230
Abstract
The luminescence properties of Cs3Bi2Br9 single crystals are reported. Cs3Bi2Br9 is an ordered perovskite, structurally and electronically related to the cesium lead halides. Emission and excitation spectra are measured at 4.2 K. The luminescence originates from the recombination of excitons bound to defects, except for a sharp line at 459.2 nm, which is ascribed to free exciton recombination. The band‐gap transition takes place at about 2.7 eV and is found to be direct and allowed. The intensity of the emission bands and the decay times are measured as a function of temperature. The results are interpreted assuming detrapping and exciton migration.Keywords
This publication has 24 references indexed in Scilit:
- Caesium enneabromodibismuthate(III)Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials, 1977
- Photoluminescence of PbBr2, PbCl2 and β-PbF2 single crystalsJournal of Luminescence, 1977
- An experimental investigation of the photoconductivity of lead halidesPhysica Status Solidi (a), 1977
- Optical properties and electronic structure of simple cubic and f.c.c. T1ISolid State Communications, 1975
- Band-edge photoluminescence of PbI2Solid State Communications, 1974
- Electronic structure and optical properties of PbPhysical Review B, 1974
- Exciton Luminescence in TlBr and TlClJournal of the Physics Society Japan, 1974
- Optical constants of lead halidesPhysica Status Solidi (b), 1973
- The energy bands of thallous chloride and bromideSolid State Communications, 1971
- Dynamic Jahn‐Teller effect in the excited states of SeCl62−, SeBr62−, TeCl62− and TeBr62−: Interpretation of electronic absorption and Raman spectraRecueil des Travaux Chimiques des Pays-Bas, 1970