Abstract

The composition and size of optically active Cd x Zn 1− x Se/ZnSe quantum dots are estimated with a previously developed method. The results are then compared with those obtained for Cd x Zn 1− x Se/Zn 0.97Be 0.03Se QDs. We show that introducing Be into the barrier material enhances both Cd composition and quantum size effect of optically active quantum dots.

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