We are working on Light emitting complexes of europium and I got stuck to find out the radiative rate ( Arad is the radiative emission rate) required to calculate the quantum efficiency. I have gone thru many articles discussed about the quantum yield and intrinsic lifetime but do not know how to calculate the radiative rate as I have calculated the total radiative rate (rad +non rad) but not able to calculate the radiative from the total for europium complex.
Related articles are
1. Plasmonically Enhanced Optical Characteristics from Europium Organometallic Complex (IEEE)
2. Preparation and fluorescent properties of europium (III) complexes with β-diketone ligand and 2,2-dipyridine or 1,10-phenanthroline (Elsevier)
Radiative rate constant is calculated from quantum yield and lifetime. Getting to know the radiative rate constant simply from lifetime won't be easy.
https://www.researchgate.net/post/How_to_determine_fluorescent_decay_rates_radiative_and_non-radiative_of_a_dye2
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