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A comparison between optically active CdZnSe/ZnSe and CdZnSe/ZnBeSe self-assembled quantum dots: effect of beryllium |
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| Authors: | Y. Gu Igor L. Kuskovsky R.D. Robinson G.F. Neumark S.P. Guo M.C. Tamargo |
| Affiliation: | a Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY 10027, USA b Department of Chemistry, City College of CUNY, New York, NY 10031, USA |
| Abstract: | The composition and size of optically active CdxZn1−xSe/ZnSe quantum dots are estimated with a previously developed method. The results are then compared with those obtained for CdxZn1−xSe/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. |
| Keywords: | 68.65.Hb 78.67.Hc 63.22.+m 78.55.Et 78.30.Fs |
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