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


ABSTRACT

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.


KEYWORDS

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


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