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Full-Text Articles in Physical Sciences and Mathematics
Mechanisms For The Creation Of Intrinsic Electron-Hole Trapping Centers In A Caso4 Crystal, T. N. Nurakhmetov, K. B. Zhangylyssov, A. M. Zhunusbekov, D. H. Daurenbekov, T. T. Alibay, B. M. Sadykova, B. N. Yussupbekova, D. A. Tolekov
Mechanisms For The Creation Of Intrinsic Electron-Hole Trapping Centers In A Caso4 Crystal, T. N. Nurakhmetov, K. B. Zhangylyssov, A. M. Zhunusbekov, D. H. Daurenbekov, T. T. Alibay, B. M. Sadykova, B. N. Yussupbekova, D. A. Tolekov
Eurasian Journal of Physics and Functional Materials
The mechanism of creation of electron-hole trapping centers in CaSO4 at 15-300 K was investigated by the methods of vacuum-ultraviolet and thermoactivation spectroscopy. It is shown that electron-hole trapping centers are formed upon trap of electrons in the anionic complexes SO2. and localization 4 of holes in the form of SO. radical. Based on the measurement of the spectrum of excitation of 4 long-wavelength recombination emission at 3.0-3.1 eV and 2.7 eV, the energy distance of the formed electron-hole trapping centers was estimated (4.43 eV and 3.87 eV).
The Nature Of Intrinsic Recombination Emission In Srso4 Irradiated With Ultraviolet Photons, T. N. Nurakhmetov, Zh. M. Salikhodzha, R. Z. Bakhtizin, K. B. Zhangylyssov, A. M. Zhunusbekov, A. Zh. Kainarbay, D. H. Daurenbekov, Zh. Azmagambetova, B. M. Sadykova, B. N. Yussupbekova, T. T. Alibay, D. A. Tolekov, N. Tulebayeva, B. Adil
The Nature Of Intrinsic Recombination Emission In Srso4 Irradiated With Ultraviolet Photons, T. N. Nurakhmetov, Zh. M. Salikhodzha, R. Z. Bakhtizin, K. B. Zhangylyssov, A. M. Zhunusbekov, A. Zh. Kainarbay, D. H. Daurenbekov, Zh. Azmagambetova, B. M. Sadykova, B. N. Yussupbekova, T. T. Alibay, D. A. Tolekov, N. Tulebayeva, B. Adil
Eurasian Journal of Physics and Functional Materials
The synthesized SrSO4 crystalline powders were irradiated at photon energies from 6 . 12 eV, in the temperature range from 15 . 300K. The investigationwas carried outbythe methodsof atomic absorp tion, luminescence and vacuum ultraviolet spectroscopy. Intrinsic emissions were found at 3.7-3.8 eV, 4.2-4.6 eV and 4.9-5 eV, and long-wavelength recombination emissions at 2.6-2.7 eV and 2.9-3.0 eV.The synthesized SrSO4 crystalline powders were irradiated at photon energies from 6 . 12 eV, in the tem perature range from 15 . 300K. The investigationwas carried outbythe methodsof atomic absorption, luminescence and vacuum ultraviolet spectroscopy. Intrinsic emissions were found at 3.7-3.8 eV, …
Intrinsic Emission And Electron-Hole Trapping Centers In Li2so4-Cu Crystals, T. N. Nurakhmetov, Zh. M. Salikhodzha, M. Y. Dolomatov, B. N. Yussupbekova, A. M. Zhunusbekov, A. Zh. Kainarbay, D. H. Daurenbekov, B. M. Sadykova, K. B. Zhangylyssov, T. T. Alibay, D. A. Tolekov
Intrinsic Emission And Electron-Hole Trapping Centers In Li2so4-Cu Crystals, T. N. Nurakhmetov, Zh. M. Salikhodzha, M. Y. Dolomatov, B. N. Yussupbekova, A. M. Zhunusbekov, A. Zh. Kainarbay, D. H. Daurenbekov, B. M. Sadykova, K. B. Zhangylyssov, T. T. Alibay, D. A. Tolekov
Eurasian Journal of Physics and Functional Materials
In thepresent work, the emission and excitation spectrain Li2SO4-Cu crystalshave been obtainedby the methods of vacuum-ultraviolet and thermoactivation spectroscopy. We have studied the nature of emission from a pressed and annealed sample of Li2SO4-Cu powders. It has been revealed that at low temperatures Cu0-SO. -centers are formed during the trap of electrons by Cu+ -centers and during 4 localization of SO. 4 -radicals in the form of localized hole centers.
Mechanisms Of Formation Of Electron Hole Trap Centers In Likso4 Crystal, T. N. Nurakhmetov, Zh. M. Salikhodzha, A. M. Zhunusbekov, A. Zh. Kainarbay, D. H. Daurenbekov, T. T. Alibay, B. M. Sadykova, K. B. Zhangylyssov, B. N. Yussupbekova, D. A. Tolekov
Mechanisms Of Formation Of Electron Hole Trap Centers In Likso4 Crystal, T. N. Nurakhmetov, Zh. M. Salikhodzha, A. M. Zhunusbekov, A. Zh. Kainarbay, D. H. Daurenbekov, T. T. Alibay, B. M. Sadykova, K. B. Zhangylyssov, B. N. Yussupbekova, D. A. Tolekov
Eurasian Journal of Physics and Functional Materials
The mechanisms of creation of electron-hole trapping centers in LiKSO4 have been investigated by the methods of vacuum and thermal activation spectroscopy. It is shown that electron-hole trapping centers are formed during the trappingof electronsbyanionic complexes and localizationofa holein the lattice in the form of the radical SO. . The appearance of phosphorescence at 3.0-3.1 eV, 2.6-2.7 eV and 2.3-2.4 4 eV confirms the creation of electron-hole trap centers.
Energy Transfer Of Intrinsic Electronic Excitation To Impurities In The Caso4-Mn System, T. N. Nurakhmetov, Zh. M. Salikhodzha, K. B. Zhangylyssov, A. M. Zhunusbekov, A. Zh. Kainarbay, D. H. Daurenbekov, Zh. Azmagambetova, B. M. Sadykova, B. N. Yussupbekova, T. T. Alibay, D. A. Tolekov, N. Tulebayeva
Energy Transfer Of Intrinsic Electronic Excitation To Impurities In The Caso4-Mn System, T. N. Nurakhmetov, Zh. M. Salikhodzha, K. B. Zhangylyssov, A. M. Zhunusbekov, A. Zh. Kainarbay, D. H. Daurenbekov, Zh. Azmagambetova, B. M. Sadykova, B. N. Yussupbekova, T. T. Alibay, D. A. Tolekov, N. Tulebayeva
Eurasian Journal of Physics and Functional Materials
The nature of the impurity emission center and the energy transfer mechanisms from intrinsic electronic excitations to the Mn2+ impurity centers in the CaSO4 . Mn crystal have been investigated. The methods of vacuum ultraviolet, atomic absorption and luminescence spectroscopy are used in a wide temperature range from 5 K to 300 K. The energy transfer of intrinsic electronic excitations to impurity emission centers in CaSO4 . Mn has been detected.