Electron-hole trapping centers in alkali metal sulfates with Dy3+ impurities
https://doi.org/10.32523/ejpfm.2023070204
Abstract
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 local levels corresponding between the electron and hole trapping center are 4.0–4.5 eV.
Supporting agencies: This work was supported by the Science Committee of the Ministry of Education and Science of the Republic of Kazakhstan, grant number AP09259303.
About the Authors
T.N. Nurakhmetov
L.N. Gumilyov Eurasian National University
Kazakhstan
Kazakhstan
Astana
T.T. Alibay
L.N. Gumilyov Eurasian National University
Kazakhstan
Kazakhstan
Astana
R.Z. Bakhtizin
Ufa University of Science and Technology
Russian Federation
Russian Federation
Ufa
S. Pazylbek
Tashenov University
Kazakhstan
Kazakhstan
Shymkent
A.Zh. Kainarbay
L.N. Gumilyov Eurasian National University
Kazakhstan
Kazakhstan
Astana
A.M. Zhunusbekov
L.N. Gumilyov Eurasian National University
Kazakhstan
Kazakhstan
Astana
B.M. Sadykova
L.N. Gumilyov Eurasian National University
Kazakhstan
Kazakhstan
Astana
D.A. Tolekov
L.N. Gumilyov Eurasian National University
Kazakhstan
Kazakhstan
Astana
R.K. Shamieva
L.N. Gumilyov Eurasian National University
Kazakhstan
Kazakhstan
Astana
A.S. Nurpeissov
L.N. Gumilyov Eurasian National University
Kazakhstan
Kazakhstan
Astana
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Review
For citations:
Nurakhmetov T., Alibay T., Bakhtizin R., Pazylbek S., Kainarbay A., Zhunusbekov A., Sadykova B., Tolekov D., Shamieva R., Nurpeissov A. Electron-hole trapping centers in alkali metal sulfates with Dy3+ impurities. Eurasian Journal of Physics and Functional Materials. 2023;7(2):115-122. https://doi.org/10.32523/ejpfm.2023070204
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