Abstract
It is shown that the integrated luminescence intensity of localized excitons in solid solutions ZnSe(1 - c)Tec has a component slowly decaying with time. After the excitation above the mobility threshold, the long-time intensity decreases exponentially, with a fractional exponent changing from a value corresponding to the critical index of anomalous diffusion to the index of normal diffusion as the temperature increases from 5 to 80 K. This change allows estimation of the energy scale for the fluctuation tail of the conduction band. (C) 2000 MAIK "Nauka / Interperiodica".
Original language | English |
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Journal | J E T P Letters |
Volume | 72 |
Issue number | 6 |
Pages (from-to) | 320-323 |
ISSN | 0021-3640 |
DOIs | |
Publication status | Published - 2000 |