Mechanisms formation of electron-hole trap centers in LiKSO4 crystall

Number 1_Vol.5

AUTHORS: T.N. Nurakhmetov, Zh.M. Salikhodzha, A.M. Zhunusbekov, A.Zh. Kainarbay, D.H. Daurenbekov, T.T. Alibay, B.M. Sadykova, K.B. Zhangylyssov, B.N. Yussupbekova, D.A. Tolekov

DOI: 10.32523/ejpfm.2021050103

PAGES: 24 - 30

DATE: 2021-03-25


The mechanisms of creation of electron-hole trapping centers in LiKSO4 have been investigated by the methods of vacuum and thermal activation spectroscopy. It is shown that electron-hole trapping centers are formed during the trapping of electrons by anionic complexes and localization of a hole in the lattice in the form of the radical SO4 . The appearance of phosphorescence at 3.0-3.1 eV, 2.6-2.7 eV and 2.3-2.4 eV confirms the creation of electron-hole trap centers.


electron, hole, trap centers, sulfates, crystals, luminescence.


[1] I.V. Kityk, J. Kasperczyk, B.V. Andrievskii, Phys. Lett. A 216 (1996) 161-166.

[2] P.A. Shchepanskyi et al., Opt. Spectrosc. 125(3) (2018) 353-357.

[3] V.Yo. Stadnyk et al., Opt. Spectrosc. 121(2) (2016) 283-288.

[4] N.K. Madi et al., Mater. Lett. 38 (1999) 154-159.

[5] M. El-Muraikhi, Mater. Lett. 51 (2001) 19-26.

[6] A. Abu El-Fadl, M.A. Gaffar, M.H. Omar, Physical 269(b) (1999) 403-408.

[7] S.P. Puppalwar, S.J. Dhoble, J. Lumin. Appl.137 (2013) 245-251.

[8] T.N. Nurakhmetov et al., Optik - International Journal for Light and Electron Optics 185 (2019) 156-160.

[9] T.N. Nurakhmetov et al., Radiation Measurements 125 (2019) 19-24.

Download file Open file