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Information × Registration Number 0212U006413, 0109U000933 , R & D reports Title Analytical investigation of influence phase boundary electronic processes in heterosystems CdS(Se) quantum points - inorganic Shell - organic matrrix on their optical and luminescent properties. popup.stage_title Head Smyntyna Valentin Andreeviсh, Registration Date 28-03-2012 Organization Odesa I.I.Mechnikov national university.Pervomaisk institute. popup.description2 The probability of course of reactions which provide passivation of superficial conditions by formation on a surface nanocrystals covers of an inorganic origin is theoretically proved. The analysis of theoretically equations of material balance of products of hydrolysis of salts of cadmium sulfur depending on рН is carried. An example of this is to establish conditions of formation of compounds of cadmium hydroxide on the surface of cadmium sulphide nanocrystals in gelatin. For the first time realized the effect of "dielectric ampflication" in the cadmium sulfide nanocrystals, which are dispersed in gelatin, by changing her electric permeability, namely, the nanocrystals, which are surrounded by a gelatin with a lower dielectric constant (? = 4.5) than in cadmium sulphide (9.3) efficient luminescence observed in volume of nanocrystals, and in the opposite ratio (hydrated gelatin) - on surface. Substantiated physical and chemical basics of semiconductor nanostructures with efficient luminescence in the visible spectrum, based on the following conditions: localization of carriers of a charge in volume nanocrystals, which provides in nanoheterostructures by relevant potential barriers on the border of nanocrystals - shell; the implementation of surface modifications for passivation of the nonradiative centers recombination; photoinduced adsorption by hydroxyl groups, surface alloying metal atoms that create centers of luminescence in nanocrystals with efficient recombination, overgrowth semiconductor shell. Product Description popup.authors Воробійов Микита Констянтинович Малушин Микола Васильович Свірідова Ольга Іванівна Скобєєва Валентина Михайлівна Струц Дар'я Андріївна popup.nrat_date 2020-04-02 Close