Luminescence dynamics models for RE ions doped materials

The effects of energy transfer on luminescence decay curves are studied. Do nor-acceptor energy transfer and donor-donor energy migration are considere d simultaneously for solving the problems in previous models. Three models named I-H-B, DH-B and V-F-B are established here. The RE ions luminescence decay curves of the elpasolite system under different conditions are calcul ated using the above models. The conclusion is that the V-F-B model is the best. Then the luminescence decay curves from the (4)G(5/2) State to H-6(7/ 2) State of Sm3+ at 170K in Cs2NaSmxY1-xCl6 for six different concentration s are simulated successfully using V-F-B model.