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Preparation and spectral properties of high-efficiency luminescent polyethylenimine-stabilized CdS quantum dots |
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| Authors: | A. E. Raevskaya G. Ya. Grodzyuk A. L. Stroyuk S. Ya. Kuchmii V. N. Dzhagan |
| Affiliation: | (1) L. V. Pisarzhevskii Institute of Physical Chemistry, National Academy of Sciences of Ukraine, Prospekt Nauky, 31, Kyiv, 03028, Ukraine;(2) V. E. Lashkarev Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, Prospekt Nauky, 45, Kyiv, 03028, Ukraine; |
| Abstract: | Feasibility was demonstrated for obtaining ultrasmall colloidal CdS nanoparticles (with diameter about 2 nm) stabilized in aqueous solution by polyethylenimine with a narrow size distribution (~10%) and luminescing at 400-600 nm (quantum yield about 10%). Complexation between CdII and polyethylenimine is a necessary condition for formation of such nanoparticles. |
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