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Modeling of the luminescence-decay kinetics of self-trapped excitons at a high excitation density under conditions of absorption saturation |
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| Authors: | S A Markov V N Makhov A N Vasil’ev V Nagirnyi |
| Institution: | 1. Lebedev Physical Institute, Russian Academy of Sciences, Leninskii pr. 53, Moscow, 119991, Russia 2. Skobeltsyn Institute of Nuclear Physics, Moscow State University, Moscow, 119991, Russia 3. Institute of Physics, University of Tartu, Riia 142, 51014, Tartu, Estonia |
| Abstract: | An analytical model for determining the spatial distribution of self-trapped excitons upon excitation at the Urbach absorption tail under conditions of absorption saturation is developed, and an expression for exciton luminescence decay kinetics in wide band-gap crystals was derived taking into account concentrational exciton self-quenching under such excitation conditions. |
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