Please use this identifier to cite or link to this item: https://doi.org/10.1021/ja035096m
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dc.titleComposition-tunable ZnxCd1-xSe nanocrystals with high luminescence and stability
dc.contributor.authorZhong, X.
dc.contributor.authorHan, M.
dc.contributor.authorDong, Z.
dc.contributor.authorWhite, T.J.
dc.contributor.authorKnoll, W.
dc.date.accessioned2014-10-29T08:37:57Z
dc.date.available2014-10-29T08:37:57Z
dc.date.issued2003-07-16
dc.identifier.citationZhong, X., Han, M., Dong, Z., White, T.J., Knoll, W. (2003-07-16). Composition-tunable ZnxCd1-xSe nanocrystals with high luminescence and stability. Journal of the American Chemical Society 125 (28) : 8589-8594. ScholarBank@NUS Repository. https://doi.org/10.1021/ja035096m
dc.identifier.issn00027863
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/106987
dc.description.abstractHigh-quality ZnxCd1-xSe nanocrystals have been successfully prepared at high temperature by incorporating stoichiometric amounts of Zn and Se into pre-prepared CdSe nanocrystals. With increasing Zn content, a composition-tunable emission across most of the visible spectrum has been demonstrated by a systematic blue-shift in emission wavelength. The photoluminescence (PL) properties for the obtained ZnxCd1-xSe nanocrystals (PL efficiency of 70 - 85%, fwhm = 22 - 30 nm) are comparable to those for the best reported CdSe-based QDs. In particular, they also have good PL properties in the blue spectral range. Moreover, the alloy nanocrystals can retain their high luminescence (PL efficiency of over 40%) when dispersed in aqueous solutions and maintain a symmetric peak shape and spectral position under rigorous experimental conditions. A rapid alloying process was observed at a temperature higher than "alloying point". The mechanism of the high luminescence efficiency and stability of ZnxCd1-xSe nanocrystals is explored.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1021/ja035096m
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentMATERIALS SCIENCE
dc.description.doi10.1021/ja035096m
dc.description.sourcetitleJournal of the American Chemical Society
dc.description.volume125
dc.description.issue28
dc.description.page8589-8594
dc.description.codenJACSA
dc.identifier.isiut000184137900036
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