Electron-hole trapping centers in Na2SO4 with a transition metal impurity Mn
Abstract
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 corresponding between the electron and hole trapping center are 4.0–4.5 eV. The decay of intrinsic and impurity trapping centers was recorded at temperatures of 130–150 K and 280–350 K.
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
S. Pazylbek
Tashenov University
Russian Federation
Russian Federation
Shymkent
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
Supporting agencies: This work was supported by the Science Committee of the Ministry of Education and Science of the Republic of Kazakhstan, grants IRN AP09259303.
For citations:
Nurakhmetov T., Alibay T., Pazylbek S., Zhunusbekov A., Sadykova B., Tolekov D., Shamieva R., Nurpeissov A. Electron-hole trapping centers in Na2SO4 with a transition metal impurity Mn. Eurasian Journal of Physics and Functional Materials. 2023;7(1):38-44. https://doi.org/10.32523/ejpfm.2023070102
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