How to relate Emsn peaks(510nm) in PL Spectra with electronic transition between energy levels in phosphor material(SrAl2O4) doped with RE ion(Eu+2)?

10 March 2017 1 164 Report

i want to know peak from different energy levels in phosphor

Hi,

Generally the emission of Eu2+ in SrAl2O4 is observed at 520 nm. The luminescence at 520 nm is commonly ascribed to the parity-allowed 4f65d-->4f7 electric dipole transition between two electronic configurations of the Eu2+ ion.

https://doi.org/10.1088/0953-8984/15/27/311

http://dx.doi.org/10.1016/S0022-2313(00)00229-5

http://dx.doi.org/10.1016/j.jlumin.2016.10.015

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