Electron-hole trapping centers in alkali metal sulfates with Dy3+ impurities

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.

Recommended Citation

Nurakhmetov, T.N.; Alibay, T.T.; Bakhtizin, R.Z.; Pazylbek, S.; Kainarbay, A.Zh.; Zhunusbekov, A.M.; Sadykova, B.M.; Tolekov, D.A.; Shamieva, R.K.; and Nurpeissov, A.S. (2023) "Electron-hole trapping centers in alkali metal sulfates with Dy3+ impurities," Eurasian Journal of Physics and Functional Materials: Vol. 7: No. 2, Article 4.
DOI: https://doi.org/10.32523/ejpfm.2023070204