A comparison between optically active CdZnSe/ZnSe and CdZnSe/ZnBeSe self-assembled quantum dots: effect of beryllium
نویسندگان
چکیده
The composition and size of optically active CdxZn1KxSe/ZnSe quantum dots are estimated with a previously developed method. The results are then compared with those obtained for CdxZn1KxSe/Zn0.97Be0.03Se QDs. We show that introducing Be into the barrier material enhances both Cd composition and quantum size effect of optically active quantum dots. q 2005 Elsevier Ltd. All rights reserved. PACS: 68.65.Hb; 78.67.Hc; 63.22.Cm; 78.55.Et; 78.30.Fs
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CdZnSe/Zn(Be)Se Quantum Dot Structures: Size, Chemical Composition and Phonons
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