This study delves into the synthesis and characterization of luminescent ceramics based on tungstenactivated magnesium fluoride (MgF 2 ) complemented with varying concentrations of lithium hydroxide (LiOH). Utilizing a distinctive sintering process conducted in an open-air milieu under robust radiation conditions, we successfully synthesized a series of tungsten-activated ...

Nurakhmetov, T.N.; Alibay, T.T.; Zhangylyssov, K.B.; Nurpeissov, A.S.; Pazylbek, S.; Griesiute, D.; Zarkov, A.; Kareiva, A. Luminescence and Electron–Hole-Trapping Centers in α-Ca2P2O7−Mn. Crystals 2024, 14, 406. https://doi.org/10.3390/ cryst14050406

Various variations of the synthesis of ZnSe quantum dots are investigated. The influence of temperature, the concentration of precursors and the time of synthesis of quantum dots was taken into account. Aliquot absorption spectra is measured for various time intervals and the dynamics of the growth of ZnSe quantum dots is estimated. Luminescence and absorption spectra were ...

Lisitsyn, V.; Mussakhanov, D.; Tulegenova, A.; Kaneva, E.; Lisitsyna, L.; Golkovski, M.; Zhunusbekov, A. The Optimization of Radiation Synthesis Modes for YAG:Ce Ceramics. Materials 2023, 16, 3158. https://doi.org/10.3390/ ma16083158

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− 4 and localization of holes in the form of SO− 4 radical. Based on the measurement of the ...

In the present work, the emission and excitation spectra in Li2SO4-Cu crystals have been obtained by 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− 4 -centers are formed during the trap of electrons by ...

In this work, we present the results of the structure and luminescence properties of YAG:Ce (Y3Al5O12 doped with Ce3+ ions) ceramic samples. Their synthesis was carried out by sintering samples from the initial oxide powders under the powerful action of a high-energy electron beam with an energy of 1.4 MeV and a power density of 22–25 kW/cm2 . The measured diffraction ...

In the present work, the emission and excitation spectra in Li2SO4-Cu crystals have been obtained by 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− 4 -centers are formed during the trap of electrons by ...