Open AccessMechanisms formation of electron-hole trap centers in LiKSO4 crystall
Author(s) -
Т.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
Publication year - 2021
Publication title -
eurasian journal of physics and functional materials
Language(s) - English
Resource type - Journals
eISSN - 2616-8537
pISSN - 2522-9869
DOI - 10.32523/ejpfm.2021050103
Subject(s) - trapping , electron , trap (plumbing) , penning trap , electron hole , phosphorescence , atomic physics , spectroscopy , thermal , lattice (music) , materials science , chemistry , physics , optics , fluorescence , ecology , quantum mechanics , meteorology , acoustics , biology
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.