Abstract
We present the results of luminescence studies for free-standing CdZnS/ZnS strained layer multi-quantum wells (MQWs). PL measurements of the CdZnS/ZnS MQW at 1.4 K show intense, sharp excitonic emission in blue-ultraviolet spectral region. The band discontinuity is estimated by an analysis of the luminescence results in terms of a finite-potential well model. A free-standing MQW is assumed. The calculated zero-stress band discontinuity is in extremely good agreement with the value from Harrison’s model.
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