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Information × Registration Number 0213U001257, 0112U003689 , R & D reports Title Nanoscale characterization of chalcogenide and chalcohalide glasses with metals and rare-earth elements for advanced technological applications popup.stage_title Head Kavetskyy Taras Stepanovych, Кандидат фізико-математичних наук Registration Date 25-01-2013 Organization Drohobych Ivan Franko State Pedagogical University popup.description2 Nanoscale characterization of chalcohalide glasses doped by RE elements of 60GeS2-20Ga2S3-20CsCl (Tm2S3, Tm2S3-Nd2S3, Ho-Tm2S3, Ho) and 70GeS2-10In2S3-20CsBr (Tm2S3) systems is carried out. The results obtained for the glasses of 70GeS2-10In2S3-20CsBr system have revealed that the defect-related lifetime ?2 and corresponding intensity I2 have the extreme values (minimum ?2 and maximum I2) for the composition with 0.38 mol% optimal Tm2S3 doping concentration at which the glass exhibited an enhanced luminescence peaking at 1480 nm. On the basis of ?2-R correlation for radius of voids R < 5 A, the size of voids in a spherical approximation has been estimated to be R = 2.5 A or V = 65 A3 65 A3 for this alloy with 0.38 mol% Tm2S3. By using Doppler broadening of annihilation line, on the basis of the results obtained of Doppler S vs W parameters for the glasses of 60GeS2-20Ga2S3-20CsCl (GGS-CsCl) compared to the glasses of 70GeS2-10In2S3-20CsBr (GIS-CsBr) it is established that the glasses of GIS-CsBr system are characterized by lower defective structure than the glasses of GGS-CsCl system. This conclusion is important from the practical viewpoint for application of the investigated chalcohalide glasses in chalcogenide photonics. Product Description popup.authors Дубик Оксана Михайлівна Кавецький Орест Степанович Кавецький Тарас Степанович Цмоць Володимир Михайлович popup.nrat_date 2020-04-02 Close