Dynamics of free and bound excitons in CdSe and localized excitons in CdSe x S 1− x are studied by degenerate four‐wave mixing and light‐induced grating experiments. In the coherent range, the dephasing of excitons is determined as a function of temperature, density and energy. For incoherent excitons, recombination lifetimes and diffusion coefficients are determined. In particular, the mobility of excitons in CdSe x S 1− x near the mobility edge is studied.
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Pantke et al. (1992) studied this question.
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