Photoluminescence and stimulated emission in Si‐ and Ge‐disordered AlxGa1−xAs‐GaAs superlattices

作者: R. W. Kaliski , P. Gavrilovic , K. Meehan , J. Gavrilovic , K. C. Hsieh

DOI: 10.1063/1.335710

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摘要: Photoluminescence and absorption data are presented on Al x Ga1−x As‐GaAs superlattices(SLs) disordered into bulk‐crystal y Ga1−y As (0≤y≤x) by Si or Gediffusion. The produced impurity‐induced disordering (by Al‐Ga interchange) is determined transmission electron microscopy, measurements, photoluminescence to be homogeneous, with an alloy composition (y) that agrees the average concentration of SL. For low enough (y≊0.23

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