Indirect Γ-L scattering within the well, and real space carrier transfer to the barrier states are shown to significantly affect the carrier dynamics in multiple quantum wells. When carriers transfer to the indirect states occurs, the carrier dynamics is modified by the slow return of the carriers from the low mobility states to the well. As a result, the absorption recovery time increases by almost an order of magnitude. Carrier transfer to the indirect states also increases the carrier lifetime to values characteristic of indirect recombination.
Effect of indirect Γ-L and Γ-X transfer on the carrier dynamics of InGaP/InAlP multiple quantum wells
C. S. Menoni, O. Buccafusca, M. C. Marconi, D. Patel, J. J. Rocca, G. Y. Robinson, S. M. Goodnick; Effect of indirect Γ-L and Γ-X transfer on the carrier dynamics of InGaP/InAlP multiple quantum wells. Appl. Phys. Lett. 6 January 1997; 70 (1): 102–104. https://doi.org/10.1063/1.119275
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