Author/Authors :
Nikl، نويسنده , , M and Mihokova، نويسنده , , E and Nitsch، نويسنده , , K and Somma، نويسنده , , F and Giampaolo، نويسنده , , C and Pazzi، نويسنده , , G.P and Fabeni، نويسنده , , P and Zazubovich، نويسنده , , S، نويسنده ,
Abstract :
Absorption, emission and decay kinetics characteristics of Cs4PbBr6 bulk and thin film samples were measured in the UV–visible spectral range over 4.2–250 K. An emission band at 375 nm was ascribed to the Cs4PbBr6 structure itself with two excitation maxima round 310 and 240 nm coinciding with absorption peaks in the thin film absorption spectrum. The coexistence of Cs4PbBr6 and CsPbBr3 phases was evidenced in both the bulk and thin film systems.
