SYNTHESIS, LUMINECENCE AND MAGNETIC PROPERTIES OF NANOCOMPOSITE MATERIALS BASED ON Mn:ZnSe/CdS/ZnS PARAMAGNETIC QUANTUM DOTS
Keywords:
ZnSe/CdS/ZnS, quantum dots, luminescence, nanocomposite, triplet, band gapAbstract
Materials called triplet-structured ZnSe/CdS/ZnS quantum dots have recently become increasingly popular due to their highly efficient size-dependent luminescence in the entire visible range. Triplet quantum dots consist of a nanoparticle core that determines the wavelength of the radiation and a shell that acts as a passivator of surface states. This shell, in turn, allows the electron-hole pair to be localized in the core, which allows for increased luminescence efficiency. Quantum dots are superior to traditional phosphors in terms of photostability, have a narrow and intense emission peak, and also absorb light in a wide range. In order to make triplet-structured quantum dots exhibit magnetic properties, doping with Mn ions has been carried out. The size-dependent luminescence property and the relatively simple methods of their synthesis further increase scientific interest in them.
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