@MISC{Potassium_emissiondecay, author = {Ions In Potassium and E. Mihokova and K. Polak}, title = {Emission Decay Kinetics of Pb}, year = {} }
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Abstract
Introduction The absorption and emission properties of Pb 2 -doped alkali halides have been reported many times (e.g., see reviews [1, 2]). Studies of their luminescence kinetics under the excitation in the A absorption band (A-luminescence) have been performed in [3, 4, 5]. They revealed three luminescence components, two fast ones, with comparable lifetimes of tens of nanoseconds, and a slow one, with lifetime of a few milliseconds. The explanation of the fact lies in the mutual function of the Jahn-Teller (JT) effect, spinorbit (SO) interaction and the influence of a charge compensating vacancy in the vicinity of the Pb 2 ion. An increasing number of experimental data on the decay kinetics of isolated centers in dielectric matrices brought also information about systems with complicated non-exponential decays. For example, a detailed decay kinetics measurement of the slow emission component in KX : Pb<F11.