Open AccessIntrinsic emission and electron-hole trapping centers in crystals Li2SO4-Cu
Author(s) -
Т.N. Nurakhmetov,
Zh.M. Salikhodzha,
M.Y. Dolomatov,
B.N. Yussupbekova,
A.M. Zhunusbekov,
A.Zh. Kainarbay,
D.H. Daurenbekov,
B.M. Sadykova,
K.B. Zhangylyssov,
T.T. Alibay,
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.2021050207
Subject(s) - electron , trapping , emission spectrum , excitation , materials science , ultraviolet , spectroscopy , penning trap , atomic physics , spectral line , optoelectronics , physics , ecology , quantum mechanics , astronomy , biology
In the present work, the emission and excitation spectra in Li2SO4-Cu crystals have been obtained by the methods of vacuum-ultraviolet and thermoactivation spectroscopy. We have studied the nature of emission from a pressed and annealed sample of Li2SO4-Cu powders. It has been revealed that at low temperatures Cu0-SO4--centers are formed during the trap of electrons by Cu+-centers and during localization of SO4--radicals in the form of localized hole centers.