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Electron-hole trapping centers in Na2SO4 with a transition metal impurity Mn
(2023)
The Na2SO4 samples were obtained by slow evaporation method. The mechanisms of the formation of
electron and hole trapping centers are investigated by spectroscopic methods. Intrinsic recombination
emission of 2.9–3.1 eV and impurity emission of 1.85 eV are excited at 4.0–4.5 eV. Intrinsic SO3−
4 − SO−4
and impurity Mn+ − SO−4 trapping centers were revealed. The local levels ...
Electron-hole trapping centers in alkali metal sulfates with Dy3+ impurities
(2023)
The Na2SO4 − Dy samples were obtained by slow evaporation method. The spectroscopic methods
were used to study the mechanisms of formation of electron and hole trapping centers. Intrinsic recombination emission of 2.9–3.1 eV and impurity emission of 2.55 eV and 2.15 eV are excited at 4.0–4.5 eV. Intrinsic SO3−4 − SO−4 and impurity Dy2+ − SO−4
trapping centers were revealed. The ...