Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.
Wählen Sie Textabschnitte aus um mit Künstlicher Intelligenz passenden Patente zu finden.
powered by
Markieren Sie Textabschnitte, um KI-gestützt weitere passende Inhalte zu finden.
powered by
Abstract
We prepared organic–inorganic layered perovskite-type compounds having a linear alkyl diamine (NH3CnH2nNH3)PbCl4 (n = 6: (1, 6-DHX)PbCl4, n = 7: (1,7-DHP)PbCl4, n = 8: (1,8-DIO)PbCl4, n = 9: (1,9-DIN)PbCl4, n = 10: (1,10-DID)PbCl4, n = 11: (1,11-DIU)PbCl4) and investigated their photoluminescence and scintillation characteristics. A broad band peak that should be attributed to self-trapped excitons (STEs) were observed at 555 nm ((1,6-DHX)PbCl4), 520 nm ((1,7-DHP)PbCl4), 525 nm ((1,8-DIO)PbCl4), 525 nm ((1,9-DIN)PbCl4), 550 nm ((1,10-DID)PbCl4), and 530 nm ((1,11-DIU)PbCl4) in scintillation. Also, they showed a scintillation decay time of 2.2 ns ((1,6-DHX)PbCl4), 3.0 ns ((1,7-DHP)PbCl4), 2.8 ns ((1,8-DIO)PbCl4), 5.6 ns ((1,9-DIN)PbCl4), 3.5 ns ((1,10-DID)PbCl4), and 4.7 ns ((1,11-DIU)PbCl4) due to the STE recombination. Further, the scintillation light yield of the (1,9-DIN)PbCl4 crystal was the highest (1,200 photons/5.5 MeV-α), and its value was higher than that of an undoped zinc oxide crystal.