Eurasian Journal of Physics and Functional Materials (Mar 2021)

Mechanisms formation of electron-hole trap centers in LiKSO4 crystall

  • 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
https://doi.org/10.32523/ejpfm.2021050103
Journal volume & issue
Vol. 5, no. 1
pp. 24 – 30

Abstract

Read online

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 SO−4 . 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