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Information × Registration Number 0214U006772, 0113U003903 , R & D reports Title Spectral and nonlinear optical properties of new nanocomposite materials for plasmonics popup.stage_title Head Yashchuk Valeriy Mykolayovych, Доктор фізико-математичних наук Registration Date 18-02-2014 Organization Taras Shevchenko Kiev university popup.description2 Тew compounds : dg23, dg60, dg75s, dg78s and AI15 in different condensed states (solution , powder, film) and at different temperatures ( 293 K , 77 K ) have been designed and synthesized . These results indicate a high probability of the existence of the compounds of several centers of absorption and emission. The spectral data, however, is not sufficient for unambiguous interpretation of the nature of these centers. According need additional spectral studies , including studies of the spectral characteristics of the individual components of the molecular data and quantum mechanical calculations. Based on the analysis of the absorption spectra , luminescence and phosphorescence were estimated position of the energy of the first singlet and triplet levels for each of the compounds (their optical centers). The studied compounds have luminescence spectra with very broad spectral range ( 400 - 700 nm ) and high intensity, which makes them potentially very promising for use as not only transport but also emitting layers for OLED- devices. The dependence of the luminescence intensity (typical for all composites ) of one another dye from the dye particles in the composite - probably the result of energy transfer between dyes. However, to obtain quantitative characteristics of this energy transfer more research is needed . Photoluminescence quantum yield solutions studied compounds are relatively large. This fact, together with the previously studied the spectral properties of these dyes suggests their promising potential to be used as emitters for WOLED. These spectral data suggest the color characteristics of individual studies composites satisfactory for use in WOLED (CIE close to (0,33; 0,33); CRI> 60 is satisfactory for use in lighting ). Product Description popup.authors Косач Віталій Віталійович Науменко А. Науменко Антоніна Прокопіївна popup.nrat_date 2020-04-02 Close