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Information × Registration Number 0218U002267, 0115U001630 , R & D reports Title The development of radiospectroscopic diagnosis methods of functional nanostructured materials for opto- nanoelectronics and medicine. popup.stage_title Head Konchits Andriy Andriyovich, Registration Date 07-02-2018 Organization Institute of Semiconductor Physics popup.description2 The nature of the light-emitting properties of CdS / polyvinyl alcohol nanoparticles (PVА) and their dependence on the concentration of nanoparticles (NP) CdS is determined. When UV light is excited, an intense PL composite consisting of four PL bands is observed, one of which is attributed to the residual radiation of the polymer matrix, and the other three to the interface between the NP CdS and the polymer. It is determined from ODMR data that in the processes of relaxation of photo-excited carriers, three types of paramagnetic centers are directly involved in the radiative recombination channels. Their radiospectroscopic characteristics were established and one of the centers was identified as an oxygen defect on the surface of the CdS. The effect of deceleration of degradation processes of nanocomposites under the influence of powerful UV irradiation with increasing of low-frequency concentration is revealed. The mechanisms of interaction of nanocomposite components with UV irradiation quanta are propoused, which describe this phenomenon. Product Description popup.authors І.П. Ворона Б.Д. Шаніна В.В. Носенко В.О. Юхимчук В.Я. Братусь Г.Ю. Рудько С.В. Красновид popup.nrat_date 2020-04-02 Close