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The effect of surface modification on the fluorescence and morphology of CdSe nanoparticles embedded in a 3D phosphazene-based matrix: nanowire-like quantum dots

Abstract : We have synthesized and characterized a new type of emissive nanocomposite material consisting of a 3D inorganic-organic phosphazene-based polymer and CdSe quantum dots (QDs). The materials uniquely combine and inherit the polymers 3D character and the QD fluorescence properties. Furthermore, we have proven that benzidine molecules are suitable surface-modifiers of QDs resulting in fluorescent, nearly spherical QDs arranged into the unique nanowire-like structure. Moreover, the benzidine-to-CdSe energy transfer has been observed which can be further exploited. Characterization of the as-synthesized materials has been performed by using UV-visible and FT-IR absorption spectroscopy, energy dispersive X-ray analysis (EDX), transmission electron microscopy (TEM), high resolution-transmission electron microscopy (HR-TEM), scanning electron microscopy (SEM), steady-state and time-resolved fluorescence measurements.
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https://hal-mines-paristech.archives-ouvertes.fr/hal-00794904
Contributeur : Bibliothèque Umr7633 <>
Soumis le : mardi 26 février 2013 - 16:33:57
Dernière modification le : jeudi 24 septembre 2020 - 18:30:07

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Karolina Siskova, Martin Kubala, Panagiotis Dallas, Dalibor Jancik, Alain Thorel, et al.. The effect of surface modification on the fluorescence and morphology of CdSe nanoparticles embedded in a 3D phosphazene-based matrix: nanowire-like quantum dots. Journal of Materials Chemistry, Royal Society of Chemistry, 2011, 21, pp.1086-1093. ⟨10.1039/C0JM02360D⟩. ⟨hal-00794904⟩

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